The palette
Water does two very different things here: a thin, winding line at the top, and a broad open sheet at the bottom. One ink serves both, so choose it for the bay: deep enough to carry a large area, clear enough for the bends of the river to read where it narrows. Green is sparse; the parks along the river are small. The made land at the mouth shows through its streets, and the curving canals of Davis Islands read only if the water is clearly set off from the paper.