Add subfigures, update TikZ code

Author: EZoni

figures/fig_bella.jpg

@@ -20,22 +20,22 @@
     api/.style={{Stealth[length=4pt]}-{Stealth[length=4pt]}, gray, dotted},
 ]
 
-    \node[inner sep=0pt] (exp) {\includegraphics[width=2cm]{bella.jpg}};
+    \node[inner sep=0pt] (exp) {\includegraphics[width=2cm]{fig_bella.jpg}};
     \node[txt, above=1pt of exp] (exp-label) {Experiment};
 
-    \node[inner sep=0pt, right=2cm of exp, yshift=-2cm] (db) {\includegraphics[width=2cm]{database.jpg}};
+    \node[inner sep=0pt, right=2cm of exp, yshift=-2cm] (db) {\includegraphics[width=2cm]{fig_database.jpg}};
     \node[txt, above=1pt of db] (db-label) {Database};
 
-    \node[inner sep=0pt, right=2cm of db, yshift=2cm] (hpc) {\includegraphics[width=2cm]{perlmutter.jpg}};
+    \node[inner sep=0pt, right=2cm of db, yshift=2cm] (hpc) {\includegraphics[width=2cm]{fig_perlmutter.jpg}};
     \node[txt, above=1pt of hpc] (hpc-label) {Supercomputer};
 
-    \node[inner sep=0pt, right=2cm of hpc, yshift=-2cm] (ml) {\includegraphics[width=2cm]{ml_alt.png}};
+    \node[inner sep=0pt, right=2cm of hpc, yshift=-2cm] (ml) {\includegraphics[width=2cm]{fig_ml.png}};
     \node[txt, above=1pt of ml] (ml-label) {AI/ML Models};
 
-    \node[inner sep=0pt, below=2cm of exp] (dashfe) {\includegraphics[width=2cm]{dashboard_frontend.jpg}};
+    \node[inner sep=0pt, below=2cm of exp] (dashfe) {\includegraphics[width=2cm]{fig_dashboard_frontend.jpg}};
     \node[txt, below=1pt of dashfe] (dashfe-label) {Dashboard Frontend \\ (Control Room)};
 
-    \node[inner sep=0pt, below=2cm of hpc] (dashbe) {\includegraphics[width=2cm]{dashboard_backend.jpg}};
+    \node[inner sep=0pt, below=2cm of hpc] (dashbe) {\includegraphics[width=2cm]{fig_dashboard_backend.jpg}};
     \node[txt, below=1pt of dashbe] (dashbe-label) {Dashboard Backend \\ (Kubernetes Cluster)};
 
     \begin{scope}[on background layer] % draw behind