I like it. It is very pretty, and I like the meaning. I would have pronounced it like the name
Eliza, so I am glad you included the pronunciation! I think
Aliza Grace sounds very pretty, but
Grace is so common. Since
Rose is a family name, I think that would be nice. (I love naming middle names after family members.)
Some other ideas:
Aliza CarolineAliza ClaireAliza Simone