Looking good! outline-less animation gets my attention as it comes with its own challenges, and it works well with the pallet your using (I specially liked the landscapes at the end),
Since it's a review; If I can be a bit "nitpicky", sometimes on the first takes it was a bit difficult to follow the characters as some elements (like the child's hair and the girl's pants) 'blended' with the white surfaces as there wasn't much contrast, just a small detail which comes to mind.
Thanks for sharing it here, I'll be keeping an eye on OuterHeart!