Superman comic book facial expression grid

A 3x3 digital art grid featuring the head and shoulders of Superman, each displaying a distinct and progressive emotional state, moving from neutral and stoic expressions in the first row, to increasingly lighthearted and joyful expressions in the second and third rows. The art style is clean, modern comic book illustration with sharp line art, flat bold coloring, and clear cel-shaded contours. The background is a solid, dark charcoal gray that allows the vibrant blue of his eyes and the warm skin tones of his face to stand out. From the stoic neutral face in the top left to the exuberant, teary-eyed laughter in the bottom right, the sequence effectively captures a wide range of human emotion rendered in a classic superhero aesthetic. Each figure is centered within its own cell, maintaining a consistent scale and lighting approach that implies a studio-quality character model sheet.