Hi ya jbignell,
Welcome to ALR. Good looking bag, nice design, neat stitch work. I like it!
A couple of suggestions you could still do on this bag.... when I have raw cut edges exposed, like on your flap, I'll use a brown sharpie marker or dye to mask the lighter line that shows in the middle of the leather, then burnish, as Dr. Tim said. I think the welt would look better if it was trimmed to a more uniform width from the bag.
-Ron