Looks like you have more in mind - I noticed the stairs going down...
Here are some things that I noticed - only some little details.
(Your map is already good, otherwise I wouldn't list such things

1) shadow missing
2) "
3) correct shadow - very good
4) I'd use a half round shadow, formed like a "D"
5) the ceiling looks a bit strange here. I'd omit it, and use a pole instead.
(Maybe have a look at Guynmart_main_3)
6) the curtain is walkable?
7) This shadow looks wrong.
I'd omit this shadow completely. Or maybe you could try the shadows in guynmart.png?
And at last some words about sizes:
We normaly have a size 1:2. A house that is 6 tiles wide from the outside would be a 12 tiles map. (round about. 11 or 13 would work too).
I'd count this as a house, so in the outside map the entrance would be around 3 instead of 6 diagonal tiles wide.
Again, I like it, and I'm curious what else you are going to create...