Martian Bounty Hunter (OC)

I think I made this character as a stickfigure as a joke when I was little. Then after the years I guess he became an OC because I'm so interested in the character.
Materials: Coloured Pencils, ink pens and a minimal amount of Gimp.
I'm still not happy with the shading and colours. I don't know if its the paper or my colouring technique. But this is the best I've ever done of him lol. He has a small backstory. I would love to do something with him one day.