I've been in a mood for updating character refs and I knew I had to redesign Sunstone/Daybreak for a long while now, so I'm posting this ref dump with comparisons just to fun.
Sunstone is Starlight's brother so I kinda wanted him to look more similar to her (at least in his sandwing form). His alter ego also got a slight redesign.
Also I thought that Halcyon (design credit goes to the lovely @snaill-dragon of course) deserved a better ref, since the last one was a bit confusing.