Hullo Gene,
Great job!
Traditionally, the end of the scabbard was recessed so that the sock slipped in snugly and was pinned as necessary.
I see you already have a variety of socks as examples (they can vary in height/length; from about 0.5cm to upwards of 5cm). The main thing is, to make it aesthetically pleasing/flow.
Don't forget to clean the blade to your satisfaction and then maintain it at that level.
Best,
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