what is wrong with the eye of the girl on the right ? and if you make a mirror like this the lightsource will be wrong , so try to correct that

To simple and edit for my liking. Maybe you should have make the teddy darker maybe even put an evil facial expression on the rabit on the evil version? Maybe even change the background to a much darker image with cracking down the middle?

Crediting is ok,add in the description link to the author's profile.And about the image,its to minimal work.Try to change her facial expression maybe,at good side maybe create white rabbit or something like that.Good luck

You realize that it's slightly off balance? The evil side is cropped slightly more than the good side.

Cool...

the blood needs more work (lighting and shading), gl