I really like this one, but try lighting the scene from multiple angles and using a flash that's far off the axis of the lens. That way you can reduce the "green eye" in the cat and (though it doesn't apply in this case) the red eye in humans.
Great shot of the girl (very photogenic), especially nice black and white. But the cat doesn't seem to be a good color for this conversion--it seems to lack sufficient contrast. Even parts of it that should be dark, like its nose! The background works mostly, but it would have been nice to avoid the vertical and the edge of something creeping just above her hairline on her left.