Airport Family Characters and Illustration

I've been going through my sketchbook at all the illustrations I had assigned myself (but, of course, never accomplished) and I've finally decided to get them out of my sketchbook and off my back. This was the first idea from the first page. 

I was in the airport with the family waiting for our flight when I saw a kid sitting on the rolling backpack his father was pulling, and that's where this "tired airport family" idea came from... I'll be trying to illustrate the idea that traveling can often be more tiresome than the actual vacation.

 The dad wasn't working too well in the sketch above, so I had to draw him on another tracing paper.