animal head, animal themes, bird, cross section, long, no people, physiology, profile, studio shot, tongue, two animals, vertical, watercolour painting, white background, wildlife, woodpecker
connection, cross section, day, horizontal, machine part, motion, no people, on the move, outdoors, railway track, speed, steam train, studio shot, the past, transportation, white background
burning, coal, cross section, digitally generated, direction, engine, heat, horizontal, motion, no people, steam train, studio shot, the past, transportation, white background, arrow sign