...
Dang. Every screenshot is great today.
First, let's start out with Dragonboy, shall we?
Dragonboy: Great screenshot. Though it DOES look like the boats need to be floating on WATER instead of in midair (

), great shot nethertheless. Gotta love that boat of red lions-thingy.
Gashin: My only complaint about it is that I have yet to see anything drastically new, like a dark forest, or a palace in the sky, ect. It's always the same-old, same-old. But still, it looks marvelous, but didn't quite get my vote.
Mighty Darknut: Well... my only complaint is that it's a little too "square-ish". Add some diagnal walls, maybe a couple of withering plants in it, some crumbeling stones in it, ect. But overall, good shot.
Radien: 
...that smiley pretty much sums it all up.
I DO have some advice, though. You could maybe have flowers growing along the dirt path, or have a couple patches of grass along it. (Really small, though) What REALLY stood out was the treetops. Those look absolutely beautifull. The whole screen reminds me of the word "Mystic". Overall, brilliant job. Definetally gets my vote.