Tripartite Color Block Wheatfield and Sky Poster

Full prompt

Minimalist tri-color landscape poster divided horizontally into three equal sections: the upper third is a pale serene celadon sky, the middle third is a textured golden wheat field rendered with thick impasto palette knife strokes, and the bottom third is rich dark umber soil. The dividing lines are sharp and absolute with zero gradient. In the dead center of the painted wheat section, a single real three-dimensional wheat stalk protrudes through the surface, breaking the flatness, striking gallery poster art, 9:16 aspect ratio.