So this was supposed to be a character based on someone from Sonic the Hedgehog? I don't see much influence other than the furry part. That's one colorful fish. Her body doesn't seem to be right with proportions. That just makes it all the more creative. The water is reflected wonderfully.
At first, I thought it was a tentacle coming up through the water. I realize it's the reflection of her hair. I wouldn't know the exact science of perspective in this case. It's weird how the skull is off to one side. Is that supposed to be her hat?