I've kind of come full circle on handles. Skinny looks good and feels good in the hand.... Until you're doing a bunch of shooting and get grease all over your hands. Was me, I'd finish it thick, maybe even figure a way to get some HC/PC texture on it if there is such a thing. Skinny little slick handles SUCK with greasy hands.
Don't like it after all that? You still have wood to play with, so get some more pins and take it down further. You can always take wood off, but you can't put it back.
As for shape of the blade? Try it first, too. You can reshape later, just as with the handles. I've used this blade a lot, and have no qualms about it functionally. For dress-up you might check on the fashions used by everyone else.
One compliment and one criticism on that blade. The steel takes a whale of an edge, which you need for cutting patches. But fashionable though small knives might be, I'm betting you're going to find it too short for cutting lots of patches with a single swipe each. You'll end up sawing, because quicker than you can imagine even a good knife that starts out sharp is going to dull surprisingly fast when it comes to cutting fabric. My general purpose knife with its 5" blade has become my "patch" knife, while the little guys are all rattling around in a drawer somewhere.
None of this is fashionable, I know. But it's sure practical.