Man, I've lost about a hour to recreate it (without shadows) but it worth it!
I learned a lot about mapmaking and also I noticed that after third layer it's starting to erase the first one.
Can you recommend me something to fix it?
Addition: I've forgot about decorations at the higher corridor because of Needles and very high hunger
Added addition: Also I've learned I can push the boxes. I realy had no idea I could do that)