I still want to pronounce Amana as uh-MAN-uh, even though I know mana is pronounced mah-nah. This may be a problem for others as well? Amana doesn't appeal to me though because it just looks like "a man a". Man is too obvious in it to make it attractive for a girls name. I'd give it 2/10.
I pronounce
Amara as you do. I find it the better option of the two. It has a strong beauty to it. I'd give it 7/10. It fits nicely with
Eden :)
(I just googled it and apparently there's an online rug store in Australia called Miss
Amara...)