Orange Peel
CAUSE
Resulting from spray can that is held too far away from the surface; spray temperature is too high (for best results, spray under 30°C or sunlight); spray nozzle is clogged.
SOLUTION
Sand with 800 grit sandpaper, and use a fine compound to rub out orange peel. If that fails, remove paint with paint remover and start over the repainting process and refinish.