Then i fixed the perspective in Photoshop, reajusted the colors and composition and added some personalization.
On blender, I mapped those images on cubes and modelised them in order to follow the shape of the facades. I added some props i found on Sketchfab and some buildings from KitBash3D in the background. Some lighting and a little atmosphere.
And here is my final render, before painting over it in Procreate.