If I had one nitpick, is that... putting the 'Ah-Choo!' next to the crotch seems a little odd. XD
General rule of thumb when I draw (and it might be the case for others) is that dialogue bubbles should at least stick to the where the person is speaking from. I'd have shrunk the characters down a bit or raised the top portion a little higher.
All in all it's alright.

I noticed that this person is starting to get a lot of business and, well, if it helps them, good.