I think if you add 1 more frame at the end will look more smooth ;)

Reminds me from Ao No Exorcist 's Rin:

http://fc05.deviantart.net/fs71/f/2011/123/f/5/ao_no_exorcist___rin_by_lancha-d3fiqgr.jpg

But I LOVE all your pics! You're my fav pixelartist! ^^

Well, there you go then. Problem solved :p

Actually, he only has one horn. xD

Very nice. I'm going to assume he has two horns rather than just the one. If that's the case, might I suggest showing a bit of the other horn on the opposite side of the head?

Yeah, thanks for pointing that out, guys. Fixing that now.

There's a stray pixel that bobs in and out of the line art on the sword.
Just thought you should know. :-)

Lack of a shadow makes his chest appear to be over his clothing. And yeah, that sword twitch is annoying >:I

looks so simple and scetched, yet so epic :3

With the ribbons, you could offset the timing of one of the ribbons so they are not flapping in the same rhythm.

Nice character.

Dude! You're head's on fire!

I knew it was you.
It's pretty intense!
No AA at all either, amazing.

Well done. Good wind effect.

(got a strange pixel twitch at end of sword)

 Love the simple style :] and that fire is awesome. I think the closest foot would look better with a less grayish color.