Great
I believe this story was about what happens to an infant when left alone with no languages spoken around it. A baby will do its best to mimic any sounds it hears, thus the strange crane-like noises its making in this animation. The same thing happens with feral children who are raised by animals with no contact with humans; they only speak in growls and barks. I vaguely remember hearing a story when I was studying Language that the Ancient Egyptians once left a child alone in a room, and only fed and watered it. They wanted to see if language was divine and came from the gods. The baby started bleating like a sheep; he was near an open window next to a sheep farm. Anyway, that's where I think your story came from.
The piece itself now. I thought the animation was great. It's very hard to animate humans, but I liked the way you drew your infant. I agree with one of your earlier comments that music would've detracted from the piece, especially if it's about what I think it's about. So good call. The voice acting on the baby is disconcertingly realistic, but very well done all the same.
Congratulations on your first solo submission, it turned out great.
PS: Please do let me know if I'm somewhere in the right area with my interpretation :P