I like your level style. It's something that I haven't seen before. However, you maybe thought about adding some NPC's to spice up the level a bit more? Especially windows will make the level look better because it makes the tiles you place outside of it look really nice. (Like the dirt and stuff)

I did wanna point out some things though that I noticed, and I'll make little images of it.


https://imgur.com/a/u470u

Overall, I like your shading it's great.