So, new Waterheart theme song - Rewrite The Stars. Waterheart is the best ship ever by the way. Medicine Cat x Warrior (Watermist x Shadeheart). Shadeheart is shadethewarrior's OC, Watermist mine.

https://youtu.be/98nUEgnXgjg

So, how is this relevant to an artbook, you ask? Well...

Here you go! X3