The central figure is a middle-aged man depicted in a three-quarter view, captured in a portrait that exudes confidence and charm. He wears a large, wide-brimmed black hat that casts a subtle shadow over his brow and a thick, voluminous white lace ruff around his neck. His expression is one of mirth, highlighted by a curled, upturned mustache and a subtle, knowing smirk that gives the painting its iconic name.
The subject is dressed in opulently embroidered clothing that displays intricate gold patterns against a dark, somber fabric. The sleeves and chest area are heavily detailed with elaborate floral and geometric motifs, suggesting wealth and high status. Beneath the ruff, the dark fabric of his doublet contrasts sharply with his pale skin, drawing the viewer's eye back to his engaging facial expression.
The painting style is a classic 17th-century European oil portrait, likely by Frans Hals. The background is a muted, neutral grey, which ensures the subject remains the sole focal point. The composition relies on soft, directional lighting that highlights the textures of the delicate lace, the sheen of the gold embroidery, and the contours of the man's face, creating a sense of three-dimensional depth and realism through masterful brushwork.