Karel Appel was a Dutch painter and sculptor, known for his involvement with the avant-garde CoBrA movement. Born in 1921, Appel's work is characterized by its bold, expressive style and vivid use of color. He often employed a gestural approach, creating dynamic and emotionally charged compositions that challenged traditional artistic norms.

Karel Appel's Midjourney style representation features bold, abstract portraits with exaggerated facial expressions. The use of broad brushstrokes and impasto techniques creates textured surfaces, adding depth and energy to the compositions. The color palette is dominated by vivid primary colors, creating a striking contrast that enhances the surreal and expressive nature of the work. Distorted features and large, open eyes contribute to a playful yet unsettling atmosphere, capturing the essence of Appel's avant-garde approach.