A drawing I did and uploaded onto DeviantArt on July 29, 2011.
I'm posting old art that I loved here as well.

Old Description from the site:
😀Guilmon X got to be my favorite X-Antibody Digimon. This is just a random drawing of him.
😎The background are toxic symbols and DigiHazard symbols(Although the X-Antibody neutralized the DigiHazard, making GuilmonX less wild but more efficient hunter).

That blue ball in the corner, the one with the blue "X", is the X-Antibody(I think).