In Geometric landscape XXIII, the traditional vista is distilled into its fundamental components. Costa employs a hybrid technique, utilizing the heavy pigment of oil painting alongside the translucent qualities of watercolour to create a sense of depth that feels both architectural and atmospheric. The composition relies on the tension between these mediums, where the weight of the paint anchors the graphic shapes against the lighter, more ethereal elements of the sky and earth.

By stripping away the chaotic details of nature, the artist reveals a structured harmony. The portrait orientation emphasizes a vertical climb through the terrain, guiding the eye across a series of deliberate intersections. It is a work that treats the landscape not as a fleeting moment, but as a permanent arrangement of form and color, grounded in the principles of graphic design.