You are extremely talented. We actually had a 'portfolio class' in the school I attended and were instructed to use our artwork in a commercial setting, ie: advertising. I would take at least half of those pieces and incorporate them into an ad-add some text, etc. I keep 3 sample sheets: photographic work, commercial and a combo sheet of graphics and photography. Also, if you have a site to direct people to, great. If not, you can use something like
http://www.tripod.lycos.com/ to showcase your work.
Good luck!