So I've just finishing re-reading the whole series and the main thing that kept bothering me was, that over time Sora began to look more and more like a man (I think it was around volume 3 where the author decided to decrease her breast size and make her look more flat chested). I get that she'll a tomboy and suppose to represent the Knight and all but this is a Shoujo Ai!!!
At least have her look somewhat feminine!!! I mean even at the end in chapter 24 when they show Sora 10 years later and in the wedding photo, she look like she became trans-gender man! but that manga was one of the best shoujo ai mangas ever.