What i really like about this design is the fact some of his features have been exaggerated such as his chin. By doing this you can help create a much more iconic character that people remember. So i think what i'm going to do it create some kind of caricature of my dad.
Taking inspiration from the desperate dan character i did a sort of caricature of my dad, exaggerating his features, making look more like a cartoon and also give him much more of personality as he look old, gritty and bad.
I then coloured the images basing the colour roughly on what my dad was wearing
I then combined both images together to get my animated version of the gunslinger :)