Well you've really improved. If you go back and clean up the lines (especially around his chin and the black mark on his lip) it would look cleaner. If you find lining difficult use the airbrush at half opacity and flow placed on thick then go back with the soft erasure less than half flow and opacity and start shaving down the lines. You get a very smooth look. the chest lines where the arms connect should be out a little more (makes his arms too thick) and his neck should be thickened. Maybe a different color bg. These are just suggestions to improve Tirbanny, you've gotten much better.

Thanks, I'll work on it.