D Train - Green Line
Green Line - D Train. Boston, MA
Initial work (for comparison): www.flickr.com/photos/yusincolorado/4038469119/in/set-721...
Drawn in a Pentalic ala modeskin 4"x6" sketchbook. Using a Pilot Cavalier Hi-Tec C Executive pen with 0.3mm point, a Rotring Rapidograph 0.13mm technical pen, and a Lamy Safari EF fountain pen with Noodler's Bulletproof Black ink.