Welcome from Ontario, Canada. That's an awesome hexagon dragon! I don't do a lot of hand quilting any more but when I do, I use my Q Snap floor frame. I have never hand quilted a hexagon quilt but I have seen antique ones done with 1/4 inch inside each hexagon. I think they did that because it was easier than quilting through the seams but your hexagons are so small that it does not look like an option. I think I might quilt a C shape inside each hexagon to suggest scales.