Tomo's cell shading animations

http://www.youtube.com/user/tomoasks
http://vimeo.com/user379696
I'm sure some other people here have came across these videos, but an amateur going by the name of "tomo" has made some pretty nice 3D cell shaded animations:

Bakemonogatari Ep.4 OP
"Renai Circulation" w/ Louise from The Familiar of Zero:
(Compare to the original)


More Louise:


Panty & Stocking, a bit more cartoony than usual:

The panty and stocking one was pretty cool.

yeah this...the louise one was pretty cool also

Yeah, I've never seen his work before, but I like it, so thank you for sharing!

After seeing this video, I realized a lot of anime always hide a person's hands while they play piano, possible to lower production costs, or because the animators don't know how to play or something. Anyone know if the song/character is from an actual anime?