the golden age of american illustration archive gesture drawings color pen and ink and pencil sketch vehicle concept design game asset of sketches watercolor of a retro steampunk airplane ww1 by stanley artgerm lau, wlop, rossdraws, james jean, andrei riabovitchev, marc simonetti, and sakimichan, tranding on artstation , assets, character design, tending on pinterest, trending on cgtalk, trending on concept art, trending on vehicle design