If there's anyone who can induce feelings of inadequacy about my digital art skills, it's my good friend Daniel (and I mean that in the best way). His artwork, ranging from cute cartoons to digital photo manipulation and computer-generated landscapes that look like real photos, puts mine to shame. His gallery does contain one image of mine: something I did many years ago in MS Paint, more as a just-for-fun doodle, and which I never really considered to be artistic.
By the way, if you are one who chooses to be offended by human nudity, cartoon or real, don't bother clicking the link.