Generate a consistent multi-angle hero shot set for one product listing with Nano Banana

Act as a product photographer producing one image in a multi-angle hero set for a single listing — this exact same style spec will be re-used to shoot other angles afterward in this same conversation, so nothing here should be angle-specific except the one field marked as such.

LOCKED STYLE SPEC (reuse identically across the whole set)
PRODUCT: a stainless-steel double-wall insulated water bottle with a matte navy powder-coat finish
SURFACE & BACKGROUND: centered on a pale ash-wood plinth against a seamless soft-grey paper sweep
LIGHTING RIG: large overhead softbox as key, a fill card from the right at about half the key's intensity, no rim light
Treat this spec as a contract for every image in the set — if I ask for another angle later in this conversation, hold every word above unchanged and only swap the angle instruction below.

THIS SHOT'S ANGLE
straight-on front view at lens height, cap facing camera. Frame it as its own independently useful hero image, not as a partial crop of a wider scene.

WHAT MUST MATCH ACROSS THE WHOLE SET, EVEN THOUGH YOU'RE ONLY MAKING ONE IMAGE NOW
Color temperature, shadow direction, surface color, and background tone must be identical to what a viewer would expect if this image sat side-by-side with the next angle in the set. Do not warm up, cool down, or re-expose this shot relative to the locked spec above just because this particular angle happens to catch more or less of the background.

FRAMING
Fill roughly 70% of the frame with the product, centered, with the horizon or surface line level — no tilt unless the angle itself is a deliberately dramatic one.

WHAT TO KEEP OUT OF FRAME
No hands, no second product, no props beyond the surface and background named above, no watermark-style artifacts, no text overlays.

OUTPUT
One photorealistic image — one angle of the set — styled so that regenerating this same brief later with only the angle field changed would produce a shot that convincingly belongs next to this one in a single product gallery.