Does it have a welt? If so, I would skip the rivet. I know Stohlman says to put a rivet in to prevent the knife from cutting the stitching, but that will dull the blade, even a soft metal like copper. If it doesn’t have a welt, I’d put one in and skip the rivet.
I’m not huge on the partial envelopment of the handle at the top, but that’s personal preference on aesthetics. It LOOKS like it might interfere with establishing a grip, but I might be misjudging that.
Otherwise, good work. Everything appears well-proportioned and the stitching is good and straight. I like the color, too. I can go either way on the stamping.