Art I did for the Warlord CCG many years ago. Later I inked the original sketch, changed the background, and used that art for the Beasties book of monsters.
The original acrylic painting was 11"x17" I think. I traded it to another artist, one of my heroes Christopher Moeller, for one of his amazing acrylic paintings.
Here is a detail shot:
I inked the sketch later and made some improvements to the background: