Take the color of choice and make it more luiquid with water and then draw it on the paper. Then blow (maybe with a straw) a bit or let the colored water drop fall from a high point. Just watch out that you don't color your room.
I've always been amazed with how flat and smooth your coloring is in traditional media. I've also really admired the style of your work. I suppose I could best describe it as warped, free, and incredibly exaggerated. It's more or less the style I've always been trying to perfect since I was a child. Your work is definitely at least first or second in my little list I keep of artistic influences, and I've envied your coloring since I found your work back in like, January.
Keep up the good work, man. I really appreciate your amazing comic work that you put on here.