Mirror Steel Tumbler on Stone, Extreme Close-Up

Use case: product-mockup
Asset type: square ecommerce material-detail product image
Primary request: An extreme close-up photorealistic product photograph of an unbranded stainless-steel tumbler, with only a deliberate portion of its cylindrical body and rim filling the frame. The mirror-like metal reflects its controlled environment as smooth tonal bands. A thin pale silk cloth is draped across the rough stone slab nearby and appears as a soft reflection in the steel.
Scene/backdrop: rough light-gray stone slab with a cool tactile texture, clearly contrasting and separating the polished metal.
Composition/framing: extreme macro-style close crop, intentionally partial product, abstract but unmistakably a premium tumbler; rim, curved wall, stone, and fabric junction all sharply composed.
Lighting/mood: directional natural window light diffused through a sheer curtain, soft but visibly coming from one side; long smooth highlight gradient defines the cylinder without a rectangular softbox reflection; restrained soft contact shadow anchors the tumbler.
Materials/textures: mirror stainless steel, rough mineral stone, thin lustrous silk, realistic controlled reflections.
Constraints: professional product photography, commercial studio lighting; sharp focus on the product, clean edges; accurate material rendering, realistic reflections; photorealistic, high detail. Square composition. No logo, no trademark, no readable text, no people, no hands.
Avoid: warped rim, dented body, chaotic room reflections, duplicated object, floating or mismatched shadow, excessive HDR, watermark, text, clutter.

무브랜드 스테인리스 텀블러의 원통형 몸체와 테두리 일부만 의도적으로 화면을 채우는 극단적 클로즈업 포토리얼 제품 사진. 거울 같은 금속에는 통제된 환경이 부드러운 명암 띠로 비친다. 거친 밝은 회색 석재 슬랩 위에 옅고 얇은 실크 천을 드리우며 그 천도 강철 표면에 부드럽게 반사된다. 얇은 커튼을 통과한 방향성 있는 창가 자연광이 한쪽에서 들어와 직사각형 소프트박스 반사 없이 긴 하이라이트 그라데이션으로 원통을 설명한다. 절제된 접지 그림자가 텀블러를 고정한다. 전문 제품 사진, 상업용 스튜디오 조명, 선명한 초점, 깨끗한 가장자리, 정확한 재질과 사실적인 반사, 포토리얼, 고해상도 디테일. 로고, 글자, 사람, 손 없음.