That looks fabulous. I like your use of the stitching for the strap as decoration too.
A note on leather bags, stitching: to use a square or rectangle with an X (our in your case the double S) aids in the strength and durability of the strap. To add even more weight bearing ability, cut a slot in the back of the bag and put the end inside to stitch down.
[I don't know why this is true, but I tested it with 4-5 oz and 7-9 oz leathers in the materials testing lab when I worked there.... I also found using two copper rivets made it so the main leather of the bag/case or the strap itself failed before the joint ever did]
With your decorative stitching, this would make the stitching really pop out and look even more sharp with the plus of having a bag able to carry about 50% more weight before failure... but I don't know what you'd want in a possible bag to weigh that much... 500, 75 cal round ball?
Thanks will keep that in mind for the next one.
RM