3d Model, thumbnail idea.

So I spent most part of my evening attempting to build one of my thumbnails in Maya to test what it may look like, I need to colour it in photoshop but I do not know how to 3D map/colour yet. But this alone took me 2 hours, sort of panicking now as I don't know what definitive idea to go for? I seem to be leaning towards this Art Deco themed frontal building, with the housing buildings aligning it and setting themselves back. With the mountains behind it..