Skeleton Model Shadow on Classroom Blackboard

Bright midmorning sunlight pours through high skylights, illuminating dust motes above polished wooden desks scattered with open books and sketchpads. A white anatomical skeleton model stands on a low table, its articulated bones casting sharp, elongated shadows that stretch across the dark green blackboard behind it. The shadows trace the curve of the ribcage and the line of the spine against the dusty surface, creating a stark graphic contrast. Clean white surfaces and restrained clutter define the room, while the peak autumn light enters with a crisp, cool angle. A thin layer of chalk dust settles on the floorboards near the base of the table.