The moon is a bit too bright and too big, and the map itself is a bit too small. Also the pillar in the middle of the map was kind of useless in my opinion. Otherwise it's not that bad for a dark map... I like the small house and that small cave on the top.
Here's an advice: don't use sceneries with your nickname in it to put as a signature in your map. This is not what will make you famous and will certainly not make your map look better, on the contrary it looks ugly. Please think about this.