In this seventeenth iteration of his geometric series, Costa explores the intersection of organic growth and mathematical clarity. The watercolour medium allows for soft, bleeding gradients that mimic the atmospheric haze of a real valley, yet these are contained within rigid, intersecting planes that suggest a map or a blueprint of the earth.

By stripping the landscape down to its essential shapes, the artist highlights the inherent patterns found in nature. The vertical composition draws the eye upward through layers of translucent color, creating a sense of depth that feels both like a physical place and a purely graphic arrangement of light and shadow.