Sunny must be really big and Rose and Moon must be pretty small as they're all the same height pretty much but Sunny is younger than both. Besides that little factor that sorta bothers me but I'm sure you intended it or I just don't know, I love it! xD
Sunny is rather large for an apprentice of her age, but she's going to end up bigger then her mother. (Somewhere around the same height at Copper.) Moon and rose are both also rather small. Moon never growing past the size of an apprentice. (Probably because she has lived as a rogue since she was an apprentice and didn't get enough to eat.) And Rose is only slightly bigger then the two of them. But she's more heavy set.