Jack walked in, his sleeves pushed up half way and a backpack slung over his shoulder.
The model was already standing in the centre of the room, and students sitting or standing around her with sketchpads and paint stands.
Looking around, he shrugged and took one of the Paint stands from the far corner and a canvas.
He opened his bag and grabbed a pencil, starting to sketch the contours of the model's figure, humming to himself.