Is this a Fowler/shotgun pouch, I notice some things inside your pouch that may indicate that. Shotgun bags were usually larger, somewhat like yours. I like the rolled lip along the front opening of the bag. And yes there is a lot of unnecessary stitching along the strap and flap area. One line of stitching for the flap and one line of stitching around where the strap attaches to the back of the bag is sufficient. I like to sew the strap on at an outward angle, this makes the pouch hang much better when wearing. The flap is a little large for my liking, although I have seen old original pouches with overly large flaps. The large flap helps hold the accouterments inside but if you would trim some of the leather off the flap and put a button to hold it down would make it look much nicer. You stitching is well done, but like was mentioned early on, to much in one area may cause a weakening of the leather it's self.
The main thing is to not be discouraged, a study of books like Tim Albert's, Madison Grant's or Jim Webb's will give you lots of good design techniques and idea's.
Kind Regards...... Frank Barker