male teenager marine full-body concept art, bronde hair, realistic very short hair, messy tousled hairstyle, heroic, detailed blue eyes, heavy white scifi armor covering a slim blue trench-coat, heavy white chest armor,  proud expression, confident, white and blue tones, black tones, dark tones, subtle scifi features, clouds over ocean background, deep shadows, ((graphic novel sketch, black sketch lines, low-key cinematic lighting, thick ink outlines, digital oil painting, pallette knife painting, posterized, cel shading, vector, tenebrism, bold brush strokes, subtle colors, subtle lighting))