This is awesome! Even more so for being hand-stitched and -embroidered. And embroidering in the car? I'm impressed already at the embroidery, but doing so in a moving vehicle, I'm now even more impressed. *g* The border and flower decoration looks lovely, I like the colours very much. And the belt fits perfectly!
Also, "Númenorean LARP" sounds really cool. I haven't done any LARPing myself, but I find it highly fascinating.