Horsea. One of my favorite Pokemon. I have a bit of soft spot for this water type - some nostalgia for my terrible Pokemon teams from the red/blue days (Lapras, Vaporeon, Slowbro, Seadra, Blastoise, and Articuno on the same team as I recall). Since then my grown up Horsea (named Galford after the American ninja of the same name from Samurai Shodown) has been a staple of my Pokemon team nerdiness.
The silhouette style is a new thing I'm trying out. I like the way it turned out. The wave pattern turned out pretty awesome as well. I can't say this will be the last Pokemon thing I ever do. These little creatures keep coming up in my sketches from time to time.