"This is my first ever pixel art, so go easy"
Aight, it would look much better if you made the colours less "screaming-ish". My eyes hurt!
For being your first peice, im impressed! 
It has a certain charm, doesn't it? :D Are the clouds supposed to look like sleeping baby cows or fuzzy male sheep? I think the darkest shades on the rocks are a bit too dark, but it looks cool :3 I fail at iso XD
well, the sky looked like a box because its ment 2 b a rip off of habbo hotel (www.habbo.com.au)
u can look at some screen shots on google images