I start with the story. This movie is an eye-opening wonderfully made piece of art about the most precious things in life. The movie demonstrates the importance of kindness, love, and care which you may not be aware of unless you lose them. That is one aspect of the story. Another important aspect of the story is children's problems in integrating with the environment, even with their own family, based on their personality. To have a different personality could be hard and gets amplified in a toxic family. The aspect of a toxic family, especially toxic parents has been presented as masterfully as possible. I won't explain the details to avoid spoiling the movie.
Storytelling is straight. Minimum metaphors and vague scenes have been filmed, maybe zero. Also, the movie does not include any form of parent love cliches which is a strong point in my opinion. You hardly find any unnecessary moments in the film and the scenes are sequenced perfectly. However, there could be some extra time for the girl's biological family. Other than that, everything is great. The story will get you right to the end which is emotional and lovely.
The cinematography is perfect as well. Excellent facial close-ups and sceneries help build up the atmosphere for different parts of the story. The performance is superb. You will accept the actors as their characters without doubt and cannot expect a better performance or cast. Especially the little girl is excellent.