Looks fantastic, man. Is that a canvas on the inside? I love the earth tones color scheme. I think the only thing I'd do differently is the strap. Is there any reason you made it segmented into three pieces? Does removing the center part make it into a handle rather than a strap? I haven't made bags yet, but I would be psyched if my first one came out half as good as this.
EDIT: Also, my curiousity is wondering what the inside of the zipper pocket looks like!