Looks great so far!
You're still working on the handle right? (I think it should be longer and fatter, it looks like you could really easily snap the handle just with the weight of the blade)
My main crit would be to have more of those straight diagonal highlights on the flat of the blade, because the dark blue you've put there gives the illusion that the side of the blade isn't flat, that it's some weird bumpy surface. Just add some of those highlights (in the same color as the highlights of the blade) and you should have the illusion of a shiny, flat surface.
Another thing is that the highlights on the sharp edge don't denote a clear light source. Remember, the only difference between shiny and matte surfaces is that shiny surfaces more accurately reflect the light that comes to them. This is why they have brighter highlights and darker shadows. Therefore, to achieve the illusion of shininess really well it helps to put very dark areas right next to very bright areas. But to this after thinking about where you want the light source to be and deduct your highlights and dark areas accordingly.
I look forward to seeing your progress!
