The style of this is really cool, but I've gotten used to most of your models being very well-wrapped, and this one just isn't wrapped as well.
The handle looks grainy, the top part of the blade looks blurry, and the shadows on the bottom part are wavy (if that's intentional, that's fine).
Still, it has more than enough quality for an 8 KB attachment and would look great when at a normal scale in-game, so I'm still giving this a 4/5 anyway as its issues wouldn't be noticeable in-game and that matters more than the preview.