Given the specification you were given to follow, I think it fits all the criteria except "comic." I didn't hear anything comedic in it. But then, I have no idea what "comic" would sound like in an instrumental. I think of the theme from "Benny Hill."
But, it's "comic" because of the context, not necessarily because there is "comedy" inherent in the song. When I think about it, that seems true for every "comic" piece of music I hear.
"Wierd Al Yankovich" tends to make a lot of different songs "comic" because of the comical changes to lyrics.
I know what cheerful, happy, and "happy go lucky" sound like. But I haven't a clue what "comic" would sound like.
So, I'd have to conclude that you have nailed it.