Thanks for the nice comments, everyone.
We didn't let him out on that bluff by himself - I photoshopped out the leash I had on him. Ha, ha, just kidding. Cutting his own food, yes. Crossing the street by himself, no! He's just turned 4 and we live in a big city. He isn't a big picture kind of kid; he likes the little details. So rather than being impressed by the grand view, he was excited to throw pebbles off the bluff.
Before I had my son I used to post a lot on PhotographyReview.com. A few of the moms with little kids who posted only ever posted shots of their kids. I always knew before I clicked on one of their pictures, that it would be of their kid(s). Now I am that mom! I will try not to bore everyone to tears with constant shots of my son, and in this one he really isn't the subject, just a useful prop really.
Courtney