Wonderfully absorbing film, beautifully shot in southern Spain with some subtlety simple performances from what are by all accounts local people. The landscape compositions are that of a painter and the use of light outstanding. Yes, I really love this film.
It is a shame therefore to have to make adverse criticisms. The film was shot over a period of one year. That is a long time but especially so when your lead actor is eleven years old. Couple that with some glaring continuity errors: The boy's socks change colour within the same scene on several occasions.
As for the ambiguity I would not criticize that; it forces the viewer to think. I don't understand Spanish so I suspect I'm missing out on quite a lot, but then the film couldn't really have been made anywhere else, such are the locations so integral to the whole.