Drop an existing product photo into a new lifestyle scene with Flux.1 Kontext

SOURCE PRODUCT IMAGE
bottle_hero_v3.png — a 500ml amber glass serum bottle with a white pump cap, shot on plain white. This exact product — its shape, proportions, label text, and color — is the fixed input; it is being relocated into a new scene, not regenerated from a description.

WHAT MUST NOT CHANGE ON THE PRODUCT
the front label reading "LUMINEUX — Vitamin C Serum, 500ml" in a thin serif font, and the brushed-gold pump cap. Do not redraw, re-letter, or "clean up" the label — every character of any visible text must match the source exactly, since a model asked to place a product into a new scene will sometimes quietly re-render label text as slightly different or blurred instead of preserving it pixel-for-pixel.

NEW ENVIRONMENT
a sunlit bathroom shelf beside a folded white towel and a small potted eucalyptus sprig, morning light through a frosted window

HOW THE PRODUCT SHOULD SIT IN THE SCENE
standing upright, slightly angled toward camera, resting on the marble shelf edge with nothing touching it. The product's scale relative to the surrounding objects in the new scene must be physically plausible — roughly the same height as the folded towel stack beside it — not oversized or shrunk to fit the composition.

LIGHT MATCHING
Relight the product to match the new environment's actual light source and direction, including a correctly angled contact shadow and any color cast the ambient light would realistically throw onto the product's surface. A product lit like a studio shot dropped into an outdoor or ambient-lit scene will look pasted in, so the light has to change even though the product itself does not.

WHAT SHOULD NOT APPEAR
Because there is no negative-prompt field, state this positively: the new scene contains only the environment described above and the single product from the source image — no duplicate of the product, no second brand's product nearby, no added text or graphic overlay beyond what was already on the product's label.

REFLECTIONS AND SURROUNDING SURFACES
If the new environment includes a reflective or glossy surface near the product — a marble counter, a mirror, a wet surface — the product should actually appear in that reflection, faintly and correctly positioned, the way it would if it were physically sitting there; a glossy surface with no reflection of the object resting on it is one of the more common tells that a product was composited in rather than photographed in place.

CHECK BEFORE FINALIZING
Compare the product's edges against the new background at the pixel level in your own review: a hard, slightly too-clean cutout edge, or a thin halo of the old white background bleeding through around the product's silhouette, means the edit needs another pass rather than being accepted as-is. Also confirm the label text is still exactly legible and unchanged from bottle_hero_v3.png — a 500ml amber glass serum bottle with a white pump cap, shot on plain white — a label that has become slightly blurred or re-angled during compositing defeats the entire purpose of anchoring to a real source image.

OUTPUT
One composited image where the product's geometry and label are unchanged from bottle_hero_v3.png — a 500ml amber glass serum bottle with a white pump cap, shot on plain white, now lit and placed as if it were physically photographed inside the new scene, with the seam between "product" and "environment" invisible.