I listened to some of your recording. I really like that you take your learning of Hawaiian quite seriously.
Whilst we can offer written advice (although I am the least able to advise on anything) you should consider seeking out speakers of Hawaiian to converse with over Skype. That way your pronunciation, enunciation and accent will be much closer to where you want it to be. Also, you can learn more vocab and grammar that way. In fact, this advice applies to any language learner really (though, I wish I could have listened to Mamo's reading before it was removed).
E Mamo, ke ho'ohana ala oe i ka skype? 'A'ole e hiki ia'u ke ho'ohana i ka kahako i ka lolouila e ho'ohana ana au ma ka hana.
I think its time I made an effort to master Hawaiian