Squaremania - Kitties for Adoption, cleaner rough

I liked this rough drawing enough that I'm going to finish it up and make a proper illustration out of it.  So far I enlarged the drawing in photoshop, lightened the opacity and printed it out so I could use that as a guideline for a tighter drawing:

I changed the adoption sign to make it more like something that someone would have on or near a box of kittens.  The original drawing actually said, "kitties for sale" but it was pointed out that my wife and I are going to be adopting.  More important - there are way too many stray kittens in need of homes that a person doesn't need to purchase them, but rather, rescue them.