Groose and Ghirahim were definitely the hardest ones. And yeah, Zelda's chin could have been improved, I'm just damn lazy.

And thank you! Yeah, you should, it's amazing :)

These are really cute, though I feel that Zelda's and Groose's face shapes are too sharp. They would probably benefit more from a little antialiasing to smooth them out. Ghiram's hair also lacks some definition in comparison to everybody else. 

Overall I like these!! I need to play my Skyward Sword game sometime.