This comic is better than last time, but I'm not quite there yet, I think. You wouldn't understand half if you haven't seen or read Horton Hears A Who. The other one should be obvious. Also, logo humor.
Color: Error! They're supposed to be wearing a different color clothing! You probably didn't notice, but you'll see later in this story that this is wrong. Also, note that Gerbil's face in the second drawing is a bit grey. That's computer-enhanced imagery. It gives a sense of depth, I think.
Pop Culture Explained: As I said, the whole Whoville thing is a bit silly i you haven't seen or read Horton Hears A Who, and even if you have it's still silly. I'm working on making the references less blatant.