The boy at the cellar window

Sketch the basic composition, focusing on the placement of the boy, the window bars, and the still life arrangement.

Establish the overall value structure by blocking in the dark areas first, then the mid-tones, and finally the highlights.

Begin refining the details of the boy's face and clothing, paying attention to the subtle shifts in value and color.

Work on the still life elements, focusing on the textures of the apples, cabbage, and wooden table.

Add the window bars, ensuring they recede into the background with proper perspective and value.

Refine the background, creating a sense of depth and atmosphere.

Add final details and highlights to enhance the realism of the painting.

Glaze with thin layers of color to unify the painting and create a sense of depth.