Liquid Penguin: Amazing color scheme. You definitely have an eye for color. I imagine you're going to balance the rest of the scene with colder colors to bring out the bright warmth of the character?
Sideburns: Very interesting concept, looking forward to the finished piece because the idea is quite good. Good dynamic pose for the jumper, though I would say that his platform might need to be tilted a bit towards the viewer (because of the force involved pushing off to jump)
Cupidsart: I really enjoy that painting style. You've got a good sense of the "three-dimensionality" with the shading, especially the dragon. Good choice in warming up your colors between your first and second WiP.
yAdam: Fantastic. Your use of light and shadow is exceptional, I'm very jealous of your skill.
Justin Oaksford: Great lines. I like the feel of this style, it's got a nice graphic-novel vibe to it. The only comment I can make is that the overall angle of the shot is "playing-it-safe" (looking more-or-less straight ahead), not that it's a bad thing, it just doesn't push the perspective envelope. A very nice touch with the sun hitting the mountain-top.