I voted for Ike's skin because I liked it most of the three. It has decent use of team colour, it's an interesting design, and it's fairly crisp.
Second in my eyes would be AR's skin, which is very creative and catches the eye, however the Zerg and Protoss sections (I believe that was the idea) don't really seem to fit together on the wrap and it does almost seem more like a Protoss covered in Zerg armor. Though I do like it.
Personally I'm not fond of FrIkY's skin, partially because of the sections of solid untextured/unshaded team colour on the shoulders and top of the cloak, and also because it looks very VERY blurry in some sections, while other sections are perhaps overly sharp. I'm not saying it's a bad skin, I'm just saying I'm not really a fan of it.
Overall I think it went okay, though it was a shame there weren't more entries. Oh well, hopefully there will be a better turnout next time.
Oh, and one more thing, just wondering why the poll for this one was anonymous? Generally they tend to list voters. The organisers can still see who has voted for what, yes?