The note from the trip

surface prep

The paper should be of high quality, ideally made from linen rags and bleached by pure water, air, and sunshine to avoid chemical damage to colors (Source 1). It must be dry and free from dampness, which can cause sizing to ferment and decompose, leading to stains (Source 1). The sizing should be evenly distributed within the paste, not just on the surface, to prevent irregular sponginess during prolonged work (Source 1).

underdrawing

Given the Impressionist style and the emphasis on 'mass drawing'—reducing complicated appearances to simple masses—the underdrawing should be light and focused on the flat appearances on the retina rather than strict outline drawing (Source 6). The artist likely sketches the basic forms of the marina elements (boats, water, sky) to establish composition before applying washes.

underpainting

Watercolor technique often involves reserving the paper for lights, using washes for darker tones (Source 1). An initial light wash may be applied to establish the general tonal values of the sky and water, consistent with the Impressionist focus on atmospheric conditions.

Wash and Transparency

Using water as the liquid and gum-arabic as the agglutinative, creating layers of transparent color while reserving paper for lights.

Mass Drawing

Reducing complex marina scenes to simple masses, focusing on the flat visual appearance rather than detailed outlines.

Atmospheric Depiction

Emphasizing weatherforms and atmospheric conditions, consistent with Impressionist and maritime painting traditions.