cmXT: if yours didn't have the white bar at the left, and the blurry light texture at top right it would look a lot better. i'd prefer it also if it was 3/4 of it's size. other than that, great composition and colours.
tangerine: gorgeous. the detail in the clouds at the right... uhhh.
I like all of them, but cmXT's entry got my vote - it's got a nice, smooth look to it and the way the different colors fade into each other is great, as is the blending of the stock.
Tangerine's entry is very slick - texture = <3, and the way that the elements on the right still have a hint of color with with the subtle outlines is fantastic.