If this poem could talk it would say:
Sonnets be damned.
I have no need for that last rhyming couplet, thank you very much.
I am perfect exactly the way I am.
But I, personally, wonder... Do I need that last couplet?
Is it less legit without it? Every couplet I try to stick there winds up making the whole piece seem cliched, but I feel like a cheater without it.
And is the imagery overdone?