I like the sound of Armia Rose the best (assuming that I have got the pronounciation correct for the others), although I would spell it Amiah-Rose, and pronounce it 'Ah-My-Ah' - I think that looks very pretty, although perhaps not in keeping with your mothers name.....
Oh, hang on- what about Amira Rose?? It has the exact letters of Maria in it and it is an old Hebrew name meaning 'Princess'???? Not sure if its pronounced 'Ah-meer-ra' or 'Ah-my-ra' - but you could do either I suppose.
You'd have my vote with that one!