What do you do when waiting for your flight?  Sketch airplanes offcourse… :).   I did this when I was travelling back from attending my nephews wedding at Washington DC and back to Dallas.

Ink and Watercolor, used Ultramarine blue and Yellow Ochre only (teeny hint of Sepia also)

The first plane left, fortunately another plane came in its place so I was able to complete this.  This was the second plane, taxi-ing off.