I tagged along on D's trip to Washington DC and sketched every day there. Challenge 296: something orange, is Alexander Calder's Cheval Rouge. (Yes, I know rouge means red, but it was orangey.) Challenge 305 is Calder's "Tom's." (Who was Tom?) And challenge 87 is the remains of my lunch. Also, a relaxing plane doodle, and maybe the first time I have painted on a plane. 
