A slender pale chalk arch spans smooth shallow water, its span perfectly even and its footings tapering. A pale powder-blue sky above soft milky green shallows, a faint horizon. Soft even light with one crisp highlight along the top of the span. painted, not photographed, no grain, no lens blur, smooth gradient shading throughout. smooth airbrush render, pale pastel shading, soft desaturated palette, no saturated accent, crisp edges against soft ground, no grain, no photographic depth of field. no vector flatness, no illustration outlines, no flat shapes