How would you spell this name?

The name is Alla. (A as in "Apple" ,so it's:A-Luh) To me,though,my current spelling looks like it would be Ah-luh. I like this name when it's said aloud.Even written.But when you pick it apart to pronounce it,it sounds terrible in my opinion. So,how would you spell it?Or would you keep it this way?