Not enjoyable
The only thing about the animation I liked was the rain. I didn't even realise that was a kid at first. The voice was good as well, but the entire thing just dragged on so slowly. The piano music that you used could have any piece seem artistic, just as the heavy metal music a lot of the crap entries use make theirs seem crap. I imagined watching your flash with a heavy metal track and what with the poorly drawn child, the flashing tree and random nuclear bomb capped off with the crap credits, it didn't seem so different to stuff I would usually blam. So I did.