Matte Black MTB Studio Diptych

[Format] Landscape 16:9 gig cover, a studio before and after diptych of one mountain bike, no legible cover text. Sharp isolated cut-out, clean packshot finish, even shadowless studio light. No watermark, no personal names. [Layout] Two vertical panels are split at the exact centre by a hard edge with no rule, border or gutter. The left panel shows the bike on a light grey seamless backdrop with a faint horizon shading low in the frame, a small colour-checker calibration card lying flat on the floor near the bottom centre of that panel, and a soft mirror reflection of the wheels and cranks stretching down into the glossy floor beneath the bike. The right panel is flat pure white, with no horizon, no reflection and no background at all, and the same bike is repeated there fractionally larger and nudged to the right. Both copies share the same side profile at nearly the same scale, centred in their panels, each filling roughly seventy percent of its panel width, wheels on the same baseline so the two objects line up across the seam. [Subject] A matte-black hardtail mountain bike in flat side profile, front wheel to the right, standing on knobbly black tyres that carry a thin red dash decal around each rim and small pale lettering on the sidewalls; thin silver spokes, a slim black frame with a narrow red-and-black graphic band along the down tube, a black flat handlebar with red hydraulic hoses looping forward, a black saddle on a slim post, a black crankset and a multi-gear rear derailleur. Even frontal studio light lays one soft specular line along the top of the frame, and a faint contact shadow grounds each copy. [Headline] none — the cover carries no headline, caption or label. The only lettering is the small illegible tyre-sidewall printing and the tiny markings on the calibration card, both unreadable at thumbnail size. [Badges] none — no logos, ratings or trust seals; the small colour-checker card is an object, not a badge. [Mood] Neutral, technical and objective: charcoal and black metal against cool grey and flat white, with one thin line of red accent on the rims and down tube. Almost no colour energy; at thumbnail size it reads as a pure transparency demonstration, the same object shown on two grounds.