9:16 Vertical composition. Dark historical documentary photography, cinematic lighting, gritty realism, high contrast and visual punch for short-form video, realistic textures, film grain, authoritative investigative tone, grounded realism, subject framed in upper two-thirds of frame leaving space in bottom third for presenter overlay, visually striking image designed for maximum viewer retention. Civil rights march moving down a large American city street in the late 1960s or early 1970s, diverse group of protesters walking shoulder to shoulder holding signs demanding civil rights, period clothing including suits, dresses, and hats, city buildings lining the street, bright daylight and energetic crowd movement, vertical 9:16 framing.