This is genius!

I love Ruby's determined game face!

The fight looks like it's going the be epic!



If you don't mind me putting a mini-critique (since you asked for one), Ruby's chin is longer than the usual.

A good rule to follow is to have the head half the size of the person's torso, depending on their height. The rules applies for short characters, but for tall ones, it's a 3-to-1 ratio.



Hope this helps, but I DEFINITELY loving the idea!

Crossovers like these need to happen more often!