In Coca Cola Girl 4 by Alex Katz, the viewer is presented with a minimalist and striking portrait that epitomizes modern elegance. The composition features a woman, partially seen from the shoulders down to her upper thighs, standing against a bold red background. She is wearing a white one-piece swimsuit that starkly contrasts with the vibrant red backdrop, drawing attention to her form.

The woman's blonde hair is styled in soft waves, and her skin is rendered in warm tones that complement the white of her swimsuit. Katz employs clean lines and flat areas of color, characteristic of his signature style, to create a composition that is both simple and impactful.

The pose of the woman is dynamic, with one arm raised above her head and the other hand resting gently on her lower abdomen. This pose adds a sense of movement and grace to the portrait. The large expanse of red background enhances the focus on the figure, emphasizing her presence and the simplicity of the design.

Coca Cola Girl 4 showcases Katz's ability to create powerful and visually arresting images through minimalism. The bold use of color and form invites the viewer to appreciate the beauty and sophistication of the subject, celebrating the modern, iconic aesthetic for which Katz is renowned.