It wasn't bad. It wasn't mindblowingly great, but it really wasn't bad. I think that the way you worked the song in went rather smoothly, but it seemed that it overpowered the rest of the story, which probably isn't the effect you're going for, is it? I also think that the characters played out quite well, but it seemed that Jiraiya said "sake" just a few too many times in a short space. It came off as a little funny. Except for a bit of polish here and there, well done.