Lol, which one? I probably drew hundreds of those over the course of sophomore and junior year. I was horrible student, spent all my classes doodling and listening to my iPod while pretending to be furiously scribbling down fascinating information on the law of cosine and solving derivatives and trigonometric equations. xD
But yay, success, you knew it was a koi! So many people asked me what the heck they were.
I want a commission from you in the future. I'll paid for it and frame it on my wall.