Prompt for a product photo with a luxury background

Act as an art director for luxury brands and an expert in prompts for image generators.

From my product and brand description, write me a prompt in English to generate a product photo with an elegant, expensive-looking background, consistent with my brand.

My product: [DESCRIBE THE PRODUCT: what it is, material, color, size]
My brand or the mood I want: [E.G. minimal and modern / classic and sophisticated / warm and artisanal]
My brand colors (if any): [E.G. gold and black, white marble, earth tones]
Luxury scene you're picturing (optional): [E.G. marble with gold veining, dark velvet, sunset light on fine wood]
Where I'll use it: [online store / Instagram / an ad]

Give me:
1. A detailed main prompt in English: subject, background surface or scene (luxury materials like marble, velvet, glass or gold metal), soft cinematic lighting, angle, lens, and "high detail, editorial product photography, sharp focus".
2. 2 different luxury background variations (another material or scene) in case the first doesn't fit my brand.
3. Which aspect ratio to use based on where I'll post it (square, vertical, horizontal).
4. A short tip so the background looks elegant without upstaging the product.

Rules: describe ONLY my product exactly as I gave it, without inventing features. Clear prompt, comma-separated. No text or logos inside the image (models garble them).