Whenever I draw a Red Mage(Pirate or otherwise), IMO, the most accented feature needs to be the feather. It is the symbol of the mage (to me, anyway) and mine are usually very large. But this is an interesting concept, a pirate Red Mage. I think it was stated earlier, about his hat, which is still a bit off. I do the same thing all the time, like my avatar, for example, I messed it up like twice. Just, I think, move his hat down on his head, and make his belt a lot more prominent, as this is a feature of pirates. It's a good picture though, you should definately keep up the Red Mage stuff!

Red Mage for life!
Mr. Lawl