Ya learn something new [damn near] every day. I was not aware that Gulliver Jones predated John Carter; that the book, by Edwin Arnold is actually considered the inspiration for E.R. Burroughs to write his book[s]. Didn't recognize the name, so I Googled it. SomBitch.. pretty frickin cool.
So, not only are you a consummate artist, but apparently quite the historian as well.
This is great Joe! The sky, landscape, warriors, and depth with the distant citadel in the background. They really pop out like 3d-ish. Real awesome highlighting. Did you use live models for this cuz you figure rendering is so amazingly realistic on steroids?