Looks like you did a pretty good job. I did not do a lot of wet sanding, but my boat is black and dark blue and earlier this Spring I did entire hull....cutting compound, then polish, then wax. Takes a LOT of time to do it right, I probably had right about 40hrs into it but it looks brand new. There are a couple areas on bottom of hull that I did not mess with yet...boat was dry docked for 1st 2 summers and those jacktards were not careful at all with forklifts and put some pretty nice scratches under the boat, some of it is impossible to even get too on trailer and I dont have access to a lift system tho at some point I would really like to fix it all since i am so stinking OCD about my boat.
Anyway, nice job. Huge difference from what you started with