If you're not inclined to make your demo projects available for download, at least do some small write-ups on the ones that indicate your work with a particular technology, describe some proof of concepts and experiments that you've worked on, or just whatever projects have been most interesting for you.
Your skills and experience notwithstanding, you should probably indicate what specifically it is you're hoping to do once you find an artist to work with. Are you looking for someone with some spritesheets ready to go, someone to put some concept art together, someone to do 3D modeling, or whatever else exactly?