diff --git a/donar.tex b/donar.tex
index 60d46df..6526ad6 100644
--- a/donar.tex
+++ b/donar.tex
@@ -5,13 +5,13 @@
   \tikzsetnextfilename{rtapp}
   \begin{tikzpicture}[scale=1]
     \node (micro) at (0,0) {\includegraphics{img/microphone.pdf}};
-    \node (speaker) at (9,0) {\includegraphics{img/speaker.pdf}};
-    \draw[->, solid, black,line width=1mm] (micro) edge node[sloped,anchor=north,text width=7cm]{
+    \node (speaker) at (7.5,0) {\includegraphics{img/speaker.pdf}};
+    \draw[->, solid, black,line width=1mm] (micro) edge node[sloped,anchor=north,text width=6.5cm]{
       \Large Call Requirements \\
       \normalsize
       \textbf{Delay:} $99^{th}$-perc delay $<$ 360 ms \\
       \textbf{Drop:} Dropped calls $<$ 2\% \\
-      \textbf{Duration:} avg: 5 min \& up to: 90 min \\
+      \textbf{Duration:} 5 min avg, up to 90 min \\
       \textbf{Anonymity:} 2-way anonymity\\
       \small Alice is anonymous to Bob,\\Bob is anonymous to Alice
     } (speaker);
@@ -30,7 +30,7 @@
 \small
 \underline{For 2-way anonymity: Onion Services}
 
-\begin{figure}
+\vspace{0.2cm}
 \tikzsetnextfilename{os1ss}
 \begin{tikzpicture}
 
@@ -52,13 +52,15 @@
 \node (aaa) at (6.25,4.5) {\emph{6 relays, 3-hop circuits}};
 
 \end{tikzpicture}
-\end{figure}
+\vspace{0.2cm}
 
 \small
 \underline{To reduce latency: Reduce circuits length}
 
 2-hops circuits have been discussed as a possible optimization\footnotemark[2]
-\begin{figure}
+
+\vspace{0.2cm}
+
 \tikzsetnextfilename{os2ss}
 \begin{tikzpicture}
 \node (j0) at (4,5) {\includegraphics[scale=0.1]{img/computer.pdf}};
@@ -76,7 +78,8 @@
 \node (lt) at (2,4.5) {\emph{Performance-first}};
 
 \end{tikzpicture}
-\end{figure}
+
+\vspace{0.2cm}
 
   \footnotetext[2]{\fullcite{bauer_optimal_nodate}}
 \end{frame}
@@ -85,7 +88,6 @@
 \normalsize
 \underline{2 Tor Configurations}
 
-\begin{figure}
 \tikzsetnextfilename{os3ss}
 \begin{tikzpicture}
 
@@ -116,7 +118,6 @@
 
 \node (lock) at (2,5) {\includegraphics[width=0.5cm]{img/gauge.pdf}};
 \end{tikzpicture}
-\end{figure}
 
 \underline{Simulated Calls}\\
 5-minute and 90-minute calls\\
@@ -132,7 +133,6 @@ Get insights on Onion Services' latency
 
 \begin{frame}{Do onion services meet latency requirements?}
 
-\begin{figure}
 \tikzsetnextfilename{petitschema1}
 \begin{tikzpicture}
 
@@ -150,10 +150,10 @@ Get insights on Onion Services' latency
 \node (lock) at (2,5) {\includegraphics[scale=0.4]{img/shield.pdf}};
 
 \end{tikzpicture}
-\end{figure}
+
 \begin{columns}
 \begin{column}{0.5\textwidth}
-\includegraphics[width=\textwidth]{img/x1.pdf}
+\includegraphics[width=0.8\textwidth]{img/x1.pdf}
 \end{column}
 \begin{column}{0.5\textwidth}
 \normalsize \underline{Acceptable 5-minute calls}\\
@@ -174,7 +174,6 @@ Get insights on Onion Services' latency
 
 \begin{frame}{Even with onion service using 2-hop circuits?}
 
-\begin{figure}
 \tikzsetnextfilename{petitschema2}
 \begin{tikzpicture}
 
@@ -191,12 +190,11 @@ Get insights on Onion Services' latency
 \node (lock) at (2,5) {\includegraphics[width=0.5cm]{img/gauge.pdf}};
 
 \end{tikzpicture}
-\end{figure}
 
 
 \begin{columns}
 \begin{column}{0.5\textwidth}
-\includegraphics[width=\textwidth]{img/x2.pdf}
+\includegraphics[width=0.8\textwidth]{img/x2.pdf}
 \end{column}
 \begin{column}{0.5\textwidth}
 \normalsize \underline{Acceptable 5-minute calls}\\
@@ -219,7 +217,6 @@ Get insights on Onion Services' latency
 
 \begin{frame}{Do onion services are stable enough for calls?}
 
-\begin{figure}
 \tikzsetnextfilename{os3ss}
 \begin{tikzpicture}
 
@@ -250,12 +247,11 @@ Get insights on Onion Services' latency
 
 \node (lock) at (2,5) {\includegraphics[width=0.5cm]{img/gauge.pdf}};
 \end{tikzpicture}
-\end{figure}
 
 
 \begin{columns}
 \begin{column}{0.45\textwidth}
-\includegraphics[width=\textwidth]{img/x3.pdf}
+\includegraphics[width=0.8\textwidth]{img/x3.pdf}
 \end{column}
 \begin{column}{0.5\textwidth}
 \normalsize \underline{Dropped 5-minute calls}\\
@@ -279,15 +275,15 @@ Get insights on Onion Services' latency
 
 \begin{frame}{Understanding Latency Spike Properties}
 
-\includegraphics[width=\textwidth]{img/circuit.pdf}
+\includegraphics[width=0.7\textwidth]{img/circuit.pdf}
 
 
 \begin{center}
 For most circuits,\\
 \Large 
 \includegraphics[scale=0.4]{img/stop.pdf} \color{red} the $99^{th}$ latency is too high, \\
-\includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} the median latency is acceptable:\\
-\includegraphics[scale=0.6]{img/question.pdf} \color{blue} Tor has latency spikes but is able to deliver some packets on time
+\includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} the median latency is acceptable,\\
+	\includegraphics[scale=0.6]{img/question.pdf} \color{blue} Tor is able to deliver \underline{only some} packets on time
 \end{center}
 
 \end{frame}
@@ -548,7 +544,7 @@ We make 2 flavors with them:
 \section{Evaluation}
 
 \begin{frame}[t]{Evaluation Setup}
-\underline{Configurations \& Goals:} Same as our preliminary analysis
+\underline{Configurations \& Goals:}\\Same as our preliminary analysis
 
 \underline{Our algorithms}
 
@@ -574,8 +570,7 @@ Double Send + Ranking (6/12 active paths)
 
 \end{frame}
 
-\begin{frame}{Does Donar reduce latency enough with 2-hop circuits?}
-\begin{figure}
+\begin{frame}{Donar on 2-hop circuits}
 \tikzsetnextfilename{petitschema4}
 \begin{tikzpicture}
 \node (j0) at (4,5) {\includegraphics[scale=0.1]{img/computer.pdf}};
@@ -590,33 +585,35 @@ Double Send + Ranking (6/12 active paths)
 
 \node (lock) at (2,5) {\includegraphics[width=0.5cm]{img/gauge.pdf}};
 \end{tikzpicture}
-\end{figure}
 
 \begin{columns}
 \begin{column}{0.5\textwidth}
-\includegraphics[width=\textwidth]{img/x5.pdf}
+\includegraphics[width=0.8\textwidth]{img/x5.pdf}
 \end{column}
 \begin{column}{0.5\textwidth}
+\vspace{1cm}
+
 \normalsize \underline{Acceptable 90-minute calls}\\
 \large \textcolor{black!50!green}{87\%} \normalsize for Donar Alternate\\
 \large \textcolor{black!50!green}{95\%} \normalsize for Donar Double Send\\
 \large \textcolor{red}{25\%} \normalsize for Torfone\\
 \large \textcolor{red}{23\%} \normalsize for Simple (our baseline)\\
 
+
+\vspace{0.5cm}
+\large \includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} Donar Alternate \\
+\large \includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} Donar Double Send
+
 \end{column}
 \end{columns}
 
-\begin{center}
-\large \includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} Both Donar variants succeed most of their calls
-\end{center}
 
 \end{frame}
 
 
 
 
-\begin{frame}{Does Donar reduce latency enough?}
-\begin{figure}
+\begin{frame}{Donar on regular circuits}
 \tikzsetnextfilename{petitschema33}
 \begin{tikzpicture}
 
@@ -633,33 +630,39 @@ Double Send + Ranking (6/12 active paths)
 \draw[fill=black] (7.5,5) circle(1mm);
 
 \node (lock) at (2,5) {\includegraphics[scale=0.4]{img/shield.pdf}};\end{tikzpicture}
-\end{figure}
 
 \begin{columns}
 \begin{column}{0.5\textwidth}
-\includegraphics[width=\textwidth]{img/x4.pdf}
+\includegraphics[width=0.8\textwidth]{img/x4.pdf}
 \end{column}
 \begin{column}{0.5\textwidth}
+
+\vspace{1cm}
+
 \normalsize \underline{Acceptable 90-minute calls}\\
 \large \textcolor{red}{58\%} \normalsize for Donar Alternate\\
 \large \textcolor{black!50!green}{87\%} \normalsize for Donar Double Send\\
 \large \textcolor{red}{31\%} \normalsize for Torfone\\
 \large \textcolor{red}{3\%} \normalsize for Simple (our baseline)\\
 
+
+\vspace{0.5cm}
+\large \includegraphics[scale=0.4]{img/stop.pdf} \color{red} Donar Alternate\\
+\large \includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} Donar Double Send
+
 \end{column}
 \end{columns}
 
-\begin{center}
-\large \includegraphics[scale=0.4]{img/stop.pdf} \color{red} Even with Donar Alternate, many calls still fail\\
-\large \includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} With Donar Double Send, most calls succeed
-\end{center}
 \end{frame}
 
 \begin{frame}{Does Donar maintain calls over time?}
-\includegraphics[width=\textwidth]{img/call_drop.pdf}
+\vspace{1cm}
+
+\includegraphics[width=0.8\textwidth]{img/call_drop.pdf}
 
 \begin{center}
-\Large \includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} Donar provides stable calls
+\large \includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} Donar Alternate \\
+\large \includegraphics[scale=0.4]{img/ok.pdf} \color{black!50!green} Donar Double Send
 \end{center}
 \end{frame}
 
diff --git a/introduction.tex b/introduction.tex
index 4df5ea7..8ae90b6 100644
--- a/introduction.tex
+++ b/introduction.tex
@@ -1,16 +1,27 @@
 \begin{frame}[t]{Privacy concerns}
+	\begin{columns}
+		\begin{column}{0.65\textwidth}
 	\begin{figure}
-		\includegraphics[width=0.8\textwidth]{img/scandals.jpg}
+		\includegraphics[width=\textwidth]{img/scandals.jpg}
 	\end{figure}
+		\end{column}
+		\begin{column}{0.35\textwidth}
 	\begin{center}
-		\Large Privacy issues have lot of \underline{different faces}
+		\vspace{3cm}
+		\Large Privacy issues have many \underline{different faces}
 	\end{center}
+		\end{column}
+	\end{columns}
 \end{frame}
 
 \begin{frame}
 	\frametitle{The impact of our technological choices}
 
-	\begin{figure}[h]
+	%\begin{figure}[h]
+		\Large The underlying Internet \underline{infrastructure}\\allows the collection\\of \underline{communication metadata}.
+
+		\vspace{1cm}
+
 		\tikzsetnextfilename{actors}
 		\begin{tikzpicture}[scale=1]
 			\node (cp1) at (0,0) {\includegraphics[scale=0.26]{img/computer.pdf}};
@@ -32,10 +43,8 @@
 			\node[above=-1.2cm of np2] (snp2) {\includegraphics[scale=0.10]{img/eye.pdf}};
 		\end{tikzpicture}
 
-		\vspace{1cm}
-		\Large The underlying Internet \underline{infrastructure} allows the collection of communication metadata.
 
-	\end{figure}
+	%\end{figure}
 \end{frame}
 
 \begin{frame}{Building a privacy-aware network}
@@ -50,7 +59,7 @@
 		\node (anet) at (4.75,0) {\includegraphics[scale=0.16]{img/tor.pdf}};
 		\draw[<->, solid, black, line width=1mm] (np1) edge (anet);
 		\node[below = 0cm of anet, text width = 2cm,align=center] (anett) {Tor};
-		\node (qs) at (9.5,0) {\includegraphics[scale=1.3]{img/question.pdf}};
+		\node (qs) at (7,0) {\includegraphics[scale=1.3]{img/question.pdf}};
 		\draw[<->, solid, black, line width=1mm] (anet) edge (qs);
 		\node[below = 0cm of qs, text width = 2cm,align=center] (qst) {Unknown\\Destination};
 		\node[above=-1.4cm of np1] (cloud1) {\includegraphics[scale=0.8]{img/cloud.pdf}};
@@ -69,23 +78,24 @@
 
 \begin{frame}{Tor's limitation}
 
+	\Large \underline{Performance}
+	hinders Tor's adoption
+
 	\begin{columns}
 		\begin{column}{0.5\textwidth}
+			\vspace{0.5cm}
 			\begin{figure}
 				\includegraphics[width=\textwidth]{img/fast.png}
 			\end{figure}
 		\end{column}
 		\begin{column}{0.5\textwidth}
+			\vspace{1cm}
 			\begin{figure}
 				\includegraphics[width=\textwidth]{img/torb.png}
 			\end{figure}
 		\end{column}
 	\end{columns}
 
-	\begin{center}
-		\Large \underline{Performance}
-		hinders Tor's adoption
-	\end{center}
 
 \end{frame}
 
diff --git a/main.tex b/main.tex
index b238bf4..e5d9aa5 100644
--- a/main.tex
+++ b/main.tex
@@ -1,4 +1,4 @@
-\documentclass{beamer}
+\documentclass[aspectratio=169]{beamer}
 \usetheme{metropolis}           % Use metropolis theme
 
 \usepackage[utf8]{inputenc}