To be perfect, one should strive to be like Martell Brink. Though she simply does her own thing regardless of other peoples opinions - She is more lovable and perfect than any other girl in existence. Is she too good for everyone on Earth? Probably. Though one guy, 'L', chooses to chase her despite it. Words cannot describe how happy martell makes L.
In summary, "Being perfect" is impossible to all but one. As Martell is completely one of a kind, no one can attain her perfection.
The one thing.. Martells one flaw. The only possible improvement that could be made to make her even better, would be if she married L.
Though of course, that's just my opinion.