Ice-cold Claws
Wyverii's is just a little... I don't know... bulbous? for me. Elementalpenguin's has a pretty bad-ass appeal to it, but the face and arms are a little muddled. In the end, none of these are perfect, although all three are good. I picked Ice-cold Claws because of the 6 different poses (3 subs, front and back,) I think the best individual pose is ICC's backsprite. The frontsprite seems to have been very hard to make.