https://fanboyfactor.com/20...

Jana is at home in the jungle and is in the strange position of saving and/or fighting newcomers on the scene. Drop-ins like the movie crew who were scouting locations until their plane crashed. Or the underwater beings, the natives, the extra-large mutated reptiles, and so on. There’s a new battle every six or seven pages.
0 & 0c are both signed by Frank Cho, the writer. Print of 500 0c in existence and that is the one that has the authentication of his signature with it.
https://www.ebay.com › Frank-Cho-...
Frank Cho In Collectible Original Comics Drawings & Sketches - eBay

The above link shows some values of Frank Cho singnature.
0c Limited print to 500 signed by the creator, posibly 0 copy, that is actually the lowest valued of the 3, signed as well. I posted some pics of Chris Batista's signature to compare, i think it is the 2nd signature on 0.