There are a ton of errors and messed up excrement in this map, too much that I'm not even going to take the time to screen shot it.
Your raised land on the hills are actually above the ground by like 1 unit, your spiral stair case is extremely messed up, the grates stick out of the wall and are unaligned, the barrels are too tall and unaligned, the wall work is really bad and sloppy with gigantic spaces in it and stuff. It looks like all you did was take wedges and lay them on top of eachother.
If you fixed all of that it wouldn't be bad.