炭笔把旧水壶画得沉下来

A single old metal kettle on a cloth, expressive charcoal drawing on visibly toothy warm paper. Deep compressed blacks under the body, lifted eraser highlights on the curved shoulder, confident loose contour, broad quiet background, realistic handle and spout geometry. Square 1:1 standalone finished image. No text, logos, watermark, border, multi-panel layout or contact sheet.

一只旧金属水壶放在布上，画成暖色粗纹纸上的表现性炭笔素描。壶身下方压实深黑，弧肩处用橡皮提亮，外轮廓松而果断，背景大块安静，提梁与壶嘴结构真实。 方形1:1独立完整成图。不要文字、标志、水印、边框、多格排版或联系表。