Nice, I really like this!
The pose, the line-work, the shading, the effects. Everything comes down to a nice drawing. I like the background alot. All the sharp angles of the effects and the expressive facial expressions creates an edge that is equaled out by the design of the character. although not yours, (I think it's from Scott Pilgrim from the tag) the way you captured this characters personality is incredible. Great work my dude.
Nicely done. Doing perspective isn't easy, and yours looks pretty spot on. Are the highlights on her eyes purposefully made to look like sideway hearts? If so, nice detail.
Onto nitpicking now. Swords without handguards are practically as dangerous to the user as they are to the enemy. Ramona Flowers would be Ramona Flores in spanish, which is a horrible name. I know the latter has nothing to do with you.