diff --git a/assets/figures/chapter-3/3.7.architecture-design.png b/assets/figures/chapter-3/3.7.architecture-design.png
index 6a89a86..3d63863 100644
Binary files a/assets/figures/chapter-3/3.7.architecture-design.png and b/assets/figures/chapter-3/3.7.architecture-design.png differ
diff --git a/chapters/3.application-design/3.7.architecture-design.tex b/chapters/3.application-design/3.7.architecture-design.tex
index 39f2b7b..1efc160 100644
--- a/chapters/3.application-design/3.7.architecture-design.tex
+++ b/chapters/3.application-design/3.7.architecture-design.tex
@@ -4,7 +4,6 @@
 
 Συνοπτικά, η αρχιτεκτονική του συστήματος αποτυπώνεται στο παρακάτω διάγραμμα:
 
-% TODO: Add proper figure
 \begin{figure}[H]
     \centering
     \includegraphics[width=.75\textwidth]{assets/figures/chapter-3/3.7.architecture-design}
diff --git a/thesis.pdf b/thesis.pdf
index 00c7a4f..fa0932e 100644
Binary files a/thesis.pdf and b/thesis.pdf differ