What do you guys think?
How can i improve?
https://files.facepunch.com/forum/upload/297035/33c537c8-e92d-4d2b-be83-da8e640c9f3d/ww2tankk.jpg
https://files.facepunch.com/forum/upload/297035/79daea49-418b-4d80-abea-1076377c8389/ww2steam_1531335291.jpg
Imo work on your lighting a bit but you're already on your way to some good pics
As Piggo said above, work on your lighting, it's extremely flat. Scene-building is actually pretty good, one problem I have with it is the fact that as far as I can tell, you try to block the horizon line (that line in between the walkable space and skybox) with large props such as rock walls and things like that, lowers the ability to add more to a scene.
Your lighting needs to be stronger and more directional to really pop. Use more sky colors rather than neutral earthy tones like you're currently using. Maybe even go out there and try some colored highlights, see what feels good. You've got the atmospheric structure down -- that last picture just needs some sick ass strong lighting rather than the middle-grey tone you've got.
https://files.facepunch.com/forum/upload/297035/f440cef3-f18a-4675-bba5-304e101d1641/ww2mountaistea.jpg
Is this a bit better?