Same man as in the reference photo (same face, curly dark hair, short beard, dark olive-green overshirt over black t-shirt). YouTube thumbnail reaction pose: genuinely shocked and amazed, mouth wide open, eyebrows raised high, both hands on his head. Waist-up, facing camera, slightly turned to his left. Bright studio key light, crisp sharp detail, high contrast. Background: perfectly flat solid pure green (#00FF00) chroma key, no shadows on background, no props, no microphone.
