Anyways, I'm not sure I said anything about that map you made. IT IS BEAUTIFUL! It is, in my professional opinion, a perfectly well balanced map with just the right amount of positive and negative space, and the rock cliff is masterfully added! (how you only put one house on it)
Ultimately, I would rate the map an 8
You lost 2 points for putting the lab too far up. You should move the entire town 1 block down, because when the player enters the lab, for about 1 second they will see the border that doesn't quite match up.