[Moved to screen shot thread]
If you want to have comments on your maps, post them in the Screenshot Thread instead of making a seperate topic.
http://rmrk.net/index.php/topic,13626.2050.html
The first map is way to straight. Nature dosen't work that way. The second waterfall is just wrong.
The second one is okay, but a little to empty. Same with the third one, but the roof looks a bit weird.