the tree and grassy area look good imo, but the building lacks detail compared to the environment.
The building's texture seems to have the same level of detail but the model defenetly doesn't. A few more polys to give the big hole, and the pile of rubble in front of itt some more defenition would make a big difference.
I'm not sure what the square thing in front of it is, are they doors? then there is a scaling problem, if not ignore this :)
Also i would sugest to look up more refference of (destroyed) buildings.

Personaly if i was tasked to make something like this, i would have choosen for a tileable texture and decalls for detail (if this is an option ofcourse), you seem to have a unique texture for everything, or if its tileable you hide it very well and kudos to you :p

This is fine for a video game, where the computer has to render the scene in real time. The texture has the right level of detail and the proper resolution, but is still missing something. The geometry as well seems lik a good polygon count for a game and detailed enough that we know what we're looking at, but at the same time seems too sparse.

I know how hard it is to include ever more details in a 3D scene, but the bare spots on the upper wall of the building and the homogeneity of the grass all suggest an ... emptiness, as if there's something missing given how detailed every other part of the scene is. I think the real lesson isn't that you need more detail, but you need to make every part of the image an equivalent level of detail to the other parts.

Also, you should make sure Infinity Lane doesn't own the image. Because you could be liable for copyright infringement.

Hmm

The building is very rough and the textures are very low res, but fine content-wise. Or maybe they look meh because of the polygon count. I don't know if you also made everything else, but the rest looks pretty good. I'm not a 3D wiz, but this is definitely fine. Keep at it.