@AnneSeraphim: you're missing a roof, without it, it totally throws off the depth perception in this map. Also important is that your stairs are waaaay up on the wall which would be impossible considering there's a lot of area to walk on (which is now merging into the wall). Here's a better way of showing it:
Your black road is also nothing but black, it needs some texture (and it should also be more of a dark grey colour, not pure black).
Your black road is also nothing but black, it needs some texture (and it should also be more of a dark grey colour, not pure black).

