ชีตออกแบบตัวละครนักฆ่าแนวแอ็กชันทริลเลอร์

An extra-wide horizontal cinematic character design sheet for an original action-thriller assassin named [JOHN], formatted as a polished concept-art board on a clean white background with black ink splatters and neon purple-blue accents. Gritty graphic-novel and anime concept art style with sharp linework, dramatic shadows, and high-contrast brush textures. Layout divided into three distinct zones: Left zone: Poster-like hero illustration. At top left, massive bold black brushstroke title text reading "[JOHN]", with small uppercase subtitle text below reading "[THE PROFESSIONAL / ONE VS ALL]". A dramatic cropped hero portrait from mid-thigh up showing the assassin walking forward calmly, holding a compact black handgun upright in his right hand. He wears a tailored black suit, vest, black dress shirt, white tie, black belt, and black dress shoes. Stern, hardened expression. Behind him, an explosive black ink splash blended with neon purple and electric blue nightclub light beams, faint human silhouettes, and ink splatters. Bottom left text reads: "[ONE MAN. NO MERCY.]". Center zone: Turnaround reference. Small uppercase heading reading "TURNAROUND" above a thin horizontal rule. Exactly 3 full-body turnaround poses of the character: front view standing straight, side profile facing right, and rear view facing away. Consistent outfit throughout: tailored black jacket, vest, slim trousers, white tie, dark shirt, black shoes. Hardened middle-aged face with a square jaw, thick eyebrows, short messy black hair with gray sides, and a trimmed dark beard with gray streaks. Right zone: Detail panels and color swatches. Small uppercase heading reading "DETAILS". Exactly 4 square detail panels in a 2x2 grid with thin sketchy borders: 1 close-up portrait of the stern face and hair, 1 close-up of the upper suit torso with white tie and lapels, 1 close-up of a hand holding a black handgun pointed downward, and 1 close-up of polished black dress shoes and trouser cuffs. Below the grid, a section labeled "COLOR PALETTE" featuring exactly 4 horizontal brushstroke swatches: black, charcoal gray, deep purple, and dark navy blue. Constraints: Exactly 3 turnaround figures, exactly 4 detail panels, and exactly 4 color swatches. All typography in English. Clean white backdrop with no logos or watermarks.