The sheath is nice looking. I am undecided on the handle being partially enveloped by the leather. If it prevents a good grip on the knife, next time make it without, otherwise it's a design preference. The rivet at the end of the stitching is also preference although as already mentioned, it can dull the blade. If you do manage to cut the stitching without a rivet, it can always be re-stitched. Also, I like the copper rivets that are visible from the front put in the other way (burr side out) for aesthetics (my preference, not right or wrong).
When I install rivets that will go against a knife or pistol, I recess the head slightly by hand with a brad point drill bit so there's no chance of them dulling/scratching the knife/pistol. When I set those recessed rivets, I wet the leather at the rivet so it pulls down into the leather.
That meander border stamp takes some care to get right. Yours is nice and even. Great job on that.
All around, your sheath is a fine one. Good work.