This is really, really well done and I don’t want to minimize that at all.
 
…that having been said, she passes through the shadow of a tree and it looks weird, because the Sun is not a point-source. The Sun is a diffuse light source about half a degree wide, and it’s why shadows have blurred edges as they move away from the object that casts them, even in perfectly clear weather. It may be that the artist knows this and the scene would be computationally impractical to render with a diffuse light source, in which case, never mind.

This gif is very calming.