Took a screenshot of an awesome kick I pulled off after gouging out part of the opponent's chest with an uppercut punch, then stuck it through POV-ray. Afterwards, I imported the image into GIMP 2.2 and added some effects (some done by hand, others through filters).
Result: A nice pic which seems to capture the impact of the kick (not the best, but I think it looks good). Also, I later used a part of this image to create my userbar. Feel free to comment or critique...