Though it discusses themes very well, I'd say the movie was way too slow!! Building atmosphere is good, but once it gets too slow, it gets repetitive and boring. The story is okay, it probably is Christian symbolism about faith (I was raised in a very catholic household!) and I don't have much to complain about it. Art is a good 10/10, I love the hauntingly beautiful characters! Sound was also great, used appropriately and not too flashy, which is really- just my personal taste for sound design.
It has great art, good sounds and a nice story, yet I couldn't bring myself to *really* enjoy it because (again) of how slow it is! would've been so much better if there was just a bit more drama in the movie to keep me interested about what is going to happen with the girl and her egg..
If you don't mind slow storytelling, like nice imagery and have some spare time- give this a watch! ^^