If you want it properly flat and shiny, I think you’re going to need to sand a lot harder than that. I can see a lot of ‘orange peel’ in that picture. It’s up to you as to how you want it finished, but if you are aiming for a standard Fender gloss finish, then that surface needs to be really flat before you start going up through the grits. Hold it up to a bright light at a shallow angle. The bits you’ve sanded should be dull as a result, but pits in the finish will still shine and reflect light. You just keep sanding until there are no shiny pits. It’s why you’ve put a lot of clear coats on - because you’re taking quite a lot off again. Then and only then do you move to the finer grits and the rubbing compounds.