I don't get it. Yes, Hawaii is an annoying catchphrase, but you should really consider picking a different one (something that doesn't rhyme with kawaii) so that people don't confuse it with kawaii. It may make the catch phrase less annoying in the process. You could pick another pleasant location like Cali, or shorten Hawaii like "waii". Honestly though if Hawaii is the only phrase you're into I'd advise dropping it completely. It's really really irritating, confusing, and unlikable.
That aside, I don't understand the picture as a whole. Why is she fascinated with plastic bags? Why is she putting it on her head? Is she about to suffocate herself and end the Hawaii threat forever?
You get a 2.5 for clean art, but confusing content and a painful catchphrase keep me from giving you more.