Really nice work! I'm going to join in and say #1 as well. You have really strong linework, so I'd lead with the lines without overdoing it (the heavy inks are rather, well, heavy). The painterly one has potential, but I don't feel that the current style complements both the inks and the painting- they compete rather than complete each other. The cell shading has a great synergy with the linework though. It's very professional and clean and I'd imagine faster than some of the other styles. You really shine with your lines, so I'd focus on the anatomy and drawing and keep doing what you're doing with the color!