These are some of the most creative fusions I've seen in a while. And coming from someone that isn't impressed by many fusions, I guess that's a nice compliment. ;) To improve the Whismur/Pikachu you should try angling the ears to face the direction the body is facing instead of straight forward. I don't know if you are that advanced in spriting yet to try custom ears, but maybe give it a shot. :P