Here it is... and note that I did not focus on the background, my main aim was to make him as professional as possible to comic style. Here is a step by step of how I approached to it, from first rough sketch, to more refined details.
1. Sketching the basic position:
2. Solidifying the lines and shapes:
3. Inking process:
4. Spotting Blacks:
This is the final product:
Peace!