A project I have been working on based on an existing concept* that I have really enjoyed <3 <3 *I am not allowed to give any more information about the concept/artist. Hope you like it!! <3
Pretty normal for cascade shadows to have artifacts like this. You'll often see this kind of gap/artifact on hats in video games from the last 2 or 3 generations. You might be able to design around it by making the windows their own model with depth going into the wall.