Seinen anime style reference and prompts

The mature anime treatment uses close cropping, measured facial proportions, and broad angular shadow planes. Olive, charcoal, ochre, muted red, and warm skinlike tones are organized into solid shapes with only a few small highlights. Strong inward diagonals around the focal gaze create tension; fine hair strands and crease lines add selective detail without breaking the graphic clarity. The background is reduced to a dark neutral strip, so form is built by contour and value rather than environmental context. Light from above creates a sharp cheek-and-nose geometry and a weighty shaded lower area. The finish is clean but not glossy, with restrained texture and a serious cinematic mood. Every visible shape directs attention toward the central expression.

A square close anime image fills almost the entire frame with the face of a young adult man. He faces straight forward and looks directly at the viewer. Olive-green and charcoal hair falls in long uneven strands across the forehead, with a few locks curving beside the cheeks. Heavy dark eyebrows angle inward, bringing the gray-green eyes into a severe, concentrated expression. The eyes are relatively small compared with more playful anime character designs, and their highlights are restrained. His nose is described by a strong triangular side shadow and a small dark mark below, while the mouth is a firm narrow line. Angular warm-brown shadows beneath the eyes and along the cheekbones give the face weight and maturity. A dark green hood or high collar wraps the neck and shoulders, with a red inner garment visible at the throat and ochre outer fabric at the corners. The top of the head, chin, and shoulders are all cropped closely, leaving almost no background. A dark gray-green field behind the hair supplies only enough separation to read its jagged edges. Color areas are broad and flat but carefully shaped: pale ochre skin, olive hair, charcoal contours, russet neck, and mustard cloth. Thin ink lines refine eyelids, stray hairs, and a few facial creases. The gaze is the center of the image; the downward slant of brows and close crop create pressure without any visible action. Light falls from above and slightly left, opening one cheek and placing the other under a larger shadow plane. No other figure, prop, location, or readable text appears. The finish is graphic and controlled, combining mature anime proportions with a compact cinematic crop.