You really have a hankering for drawing arrows recently, dontcha man? Funny idea, i think a couple less arrows or drawing this so the balloon is a different color (along with the air being released being white) and really makes it clear what's going on would strengthen the concept, which i really enjoy. Love the title as well.
and i think evan3 meant Hector usually IS sarcastic?
I think this look good, I do agree with the white cloud/ the yellow. I really your rendering on the arrows. The air at first made me think of some kind of poisonous gas, so maybe changing that would be good :) Nice work, keep it up!