Thanks a lot guys, i'll try to do smth with colors as you adviced!
Hi again! I did some work today with colors, and here i want to share the result
Here is a new version.

Here is an old for comparison.

For me new version looks better, but i am a bit confused with colors of underground brown blocks. As you can see your advices helped me, so now i want to ask you for another piece of feedback. Peace!


