Not bad at all. Always love to see new Breath of Fire II art, especially as well done as this. My only complaint would be that her legs are much shorter than in the official art, but that could be easily corrected were you to draw Nina from the same game.
Yes it is Katt from Breath of Fire 2, how ever I intended this to show her as a few years older then what she is in the game. Hence the slight change in apearance. I do also have plans to comish Nina from BoF2 as well once I can get the cash for it.
PS: May be nice of I would be to get the original image Felsus as I did comish this, and she still lacks background