Like Bill said, if you're happy with it as-is, don't worry about it. Some cars get polished, some get cleared, some get cleared an polished, but occasionally, I get lucky and put down a nice looking paintjob right from the can. This '65 Corvette is Tamiya Italian Red, no clear, rubbed with Novus plastic polish #2:
This Deuce is PPG Ford Sonic Blue Pearl with PPG clear, rubbed with Novus #2:
And this old Woody is Tamiya TS-14 Black, right from the can, no rubbing, no clear:
I'm happy with how each of them turned out, but they all took different approaches to to get there.