I'm a fan too
I really like 'In My Hands' , the original version & the 'Norino Remix'.
I think she sings pretty much mostly in english & I think she has written the lyrics to most of her songs herself.
Anna has a lot of similarities to hitomi. both are models & really famous for being fashionable , write their own songs and they both have their own sub-label on Avex. Anna has 'Mad Pray Records' & hitomi has 'Love Life Records'.