What is in this image? Be very specific. Scientific, Engineering style! No emotions, no opinions, no metaphors. Just the facts, as detailed as possible.

This image is a black and white line drawing depicting three human figures and one snowman. On the left, the first figure appears to be a young child, wearing a knitted hat and a jacket, posed with arms crossed. The second and fourth figures, positioned consecutively from left to right, are slightly taller children dressed in winter clothing, consisting of jackets and hats. The third figure, located centrally in the drawing and between the second and fourth figures, is a stylized snowman. It features three primary segments decreasing in size from base to top a large bottom sphere, a smaller middle sphere, and an even smaller top sphere functioning as the head. The snowman''s facial features include two dots for eyes, an elongated carrot-like nose, and a straight line for a mouth. It wears a pot as a hat. The drawing background consists of two horizontal lines presumably representing the horizon and the snowy ground.