The red reflections on the left helmet look good, especially where the edges are accentuated by highlights. The right looks a bit off by comparison though. I would expect more angles to reflect the red light if the helmet's material was "shiny" (like on the vader helmet). But any less reflective than that and I would expect the glow to be a lot more diffuse. To me atm it seems half way between.. thought it was red paint at first for a second. 

Looks good to me aside from that though, good work fleshing out the weird shapes and curves of these helmets convincingly.

I love the intricate details in the armor and weapons. Also like the palette -- my only minor suggestion might be giving the face more contrast, since I thought it was all part of the helmet at first... but that could just be me, lol. Overall looks great, would be amazing if this becomes (or is already) part of a full attack animation :)

Thanks :)  @ Saga and gablp30stm

I agree with you on the palette. Also I think the grapes could have benefited from the same dithering you gave the other 3 items. I'm with Frost Butt on the glass though, it came out very well.

 Just noticed this in your gallery, I agree with what ElectroNico said. There also seems to be a stray mark on his knee? Both of them, actually. 

 This way of using pixels is something that I don't often see, and I really like it. Of course the palette, composition, and general aesthetic appeal is nice too.  As far as I can tell this is clearly pixel art, I'm surprised people would suggest otherwise. Might make a great forum signature too given the dimensions. 

 Clever interpretation of the challenge, and nice artwork. Probably the only challenge entry I knew I'd vote for.  

As Manjaman said, the water seems to lack detail compared to the rest of the piece. I like the trees though.

I'm sorry I couldn't pick more than three -- lots of great pieces this time.

I like the creativity in it.

I wish it had a background -- and I love the minimal animation in the avatar, it gives the character a lot of life.

EDIT- Thanks for adding a BG.

Very nice, but in my opinion the four-fingered hands look a little strange, because of the level of detail in the rest of the piece, and the fact that it's five-fingered in the preview..

Though I think you could have used a darker pink for the darker shade of the shirt, and some of the outlines are a bit strange, I like it. In particular I think the shading is nice, and the lineart/perspective is very good.

Very creative.

I like it -- reminds me of www.pixeljoint.com/pixelart/33198.htm for some reason. Background looks like it might be a little rushed though.

As skull said, I don't think you need 16 colors for such a small piece. 

Could have used some AA.

Thanks