Barcelona’s “hop-on, hop-off” double-decked tour bus waits for customers near the port. The ticket agent and bus alike wear red colors, and its vivid hue drew my eye. I abstracted the bus by slicing it vertically at the front, pairing its incongruous hopping frog logo with the ticket agent who holds a pen to her lip. I also liked the way the curve of the window echoes the curve of the upper deck railing.