Vista-tan (A.K.A: Vis-tan?)

This was a sketch (well, a bit more refined than my usual sketches) I did while bored at school. Design taken from this [AWESOME, Japanese made] Vista-tan prototypes: [link] [link] [link]
She's one of the proposed designs for a Vista-tan OS-tan. I really hope she gains enough support to become the one of the 4 "official" Vis-tan design.

Also, I won't deny this has anatomy mistakes