Original drawer unknown, I only added colors and a little shading to it.
Found the original black&white sketch on the Internet, don't know who has draw it, sorry.
Although the final result looks damn nice, the coloring work on this wasn't a big deal, because the original draw was already high-quality shaded.
All the coolness belongs to the unknown original drawer of this.
Astaroth from the card game Shinra Bansho