Hahaha I like that first one, too.
As for D&P3, he has potential. Not to sound condescending here, either, but all artists start at this level and eventually work up to the skill level of Mark Crilley, Yuu Watase, or better. Not only that, but it's going to be art in someone's eyes, so he still could have technically created a masterpiece if he created it with his heart in the right place.
Pretty much anyone could learn to be an artist, which is literally a matter of practice. Artistic ability comes from the Right side of the brain, which has to be developed, much like the Left side of the brain (which is for more technical stuff, I think?). Or, at least that's what I remember from my Drawing I class.
Also, that last picture has some wacky hair.
I like it!