The neck looks great, and the decal bedded in very nicely.
I wasn't sure about the headstock shape at first, but the more I look at it, the more I like it!
(my brain gets stuck in "traditional" very easily )

12000 grit micro-mesh is definitely classed as polishing in my book...
Yeah, I have a sheet of 12,000 that came in my Micro-Mesh kit; I don't think I've ever used it!

I think maybe I've gone up to 8,000 once...
I couldn't see or feel a difference from 6,000 so never bothered going beyond that again. TBH I generally stop at 4k nowadays and finish with Micro-Gloss polishing liquid.

I'm not telling you to not up to (down to???) 12k, just relaying my experience.