Great custom, love using the old movie Hulk for bases. I'm not as familiar with this character but would he need a fin. If so craft foam works great for those kind of details.
The figures contained in the Custom Showcase are not for sale by Figure Realm, and the creators of the customs are no way affiliated with Figure Realm. The Custom Showcase is purely for entertainment purposes and only provides a means for the creators to show off their work and trade ideas. Figure Realm does not make or sell customs.
I made fin from aluminum foil and clay