Just added one of the elite four sprites. It may not be final. I hope to have the water gym leader soon. Also, check the bottom of the main thread for new info on multiple things.
You certainly can, just upload it to you own image host as I'll be deleting it from my Dropbox to save some space. I'm not a spriter, but, if I have some time I would be up for doing a little art for this game; I'm backed up on commissions right now, so I'll be busy for a long time.