Did a quick scribble off of a photo. I'm told scribbling is a good warm-up for complex drawing, but this alone was exhausting to me, haha

Everyone's faces are blank, because I don't know how to draw eyes, nose, and mouth very well and didn't want to ruin the end result.
I've seen the photo that it's based on, so my visual memory sort of "completes" the picture, but what about you guys? Any thoughts, comments?

I have trouble drawing people together so i'm actually rather jealous >_>
My attempts do not come out nearly half so well as this!
Good job
I did a number of scribbles, and this is the best turn out. I'm told it's a good exercise and can be fun, but most importantly it's done quickly - which I like