Death match

I draw this in my spare time for this past few days. The character is randomly created, though, I admit that the one with red hair is similar with this, but with different sword.

I'm thinking to draw something with interaction between two character, something action, and so I draw the battle scene. After I'm done with the character, I'm thinking of what will be the background, then I place them in a stadium in a death match. The battle is just started, so there is still no blood. lol

I draw this using SAI Paint Tools. Although this is not the first time I used it, this is the first one I draw full page. For the background, it is blurry and not detailed. The reason is, I'm really not good with background!