From your 3d section I'd remove the characters, the unfinished image with those 2 guns. The image second the left on the bottom row, the one with a building made with like..satellites or something. Also...do you have any high poly models? I think right now you're limiting yourself too much with just low poly+diffuse…
I think these pieces are good enough to stay. Note I only took half the furniture. The top 2 sets are very very simple. The only really likeable items are the beds and couches. Sorry to be so harsh. All your renders seem to be 3dMax scanline renders, with a very bland light setup, if any light setup at all. The latest 2…