Well, if that's supposed to be lightning hitting the paper I say you should add more darker clouds to give the thunder storm effect. I think it's just me but I think you should add your hat. I find it's your trade mark plus I also love the hat! If it's supposed to be a serious picture (thats what I'm getting from their facial expressions) Joe should also have a serious expression.
That's all I can think of, I hope what I said helped any. Love your work keep it up! Visit Canada (Maritimes) if you can sometime please.
First off, Pam is the only one not looking up; instead she appears to be looking out at the viewer. That draws attention away from the main focus of the drawing. Try to position the pupils so that it at least appears like she is looking in the direction everyone else is. Then the attention will be back to where it should be. Secondly, the top part of the page lacks detail yet the bottom is full of it. You should try to even that out by adding flashier colors or more detail near the top once as it is being colored. Otherwise, this is pretty cool!