You did a great job on the molding, the snap may cause you some grief, if the leather softens up you'll have a difficult time snapping it unless the case is full of something solid.
I like the flap to cover the pouch mouth completely to keep rain and other debris out, this one appears to be open on the sides.
The only other thing I would consider changing is the belt loops, something more streamlined .
Is the back two layers?
Over all it looks good.