The Quay, Olaveaga, Bilbao

Begin with a light sketch outlining the main shapes: mountains, buildings, water, and sky.

Establish the horizon line and the basic perspective of the buildings.

Block in the large areas of color: sky, water, mountains, and buildings, using thin washes.

Develop the sky with layers of blended blues, grays, and whites to create cloud formations.

Add details to the mountains, varying the greens and browns to suggest depth and texture.

Paint the buildings, paying attention to the subtle color variations in the walls and roofs.

Add the figures and boats, starting with the larger shapes and gradually adding details.

Refine the details and add highlights to create a sense of light and atmosphere.