Option 2 (dark). The contrast pulls the eye toward the action. The light version reads more like a print mockup than a player. Also dark mode tends to win for any product people use late. Less retinal protest, more engagement.
A lamp changes the room before it changes shape. In Lume, tap the brass shutter and watch daylight shift to dusk across the same oxblood shade and stone base. Keeping the camera still makes the change easy to see.
I built this independent Spline study for product pages where light is part of what the customer is choosing.