Use Case Kiln: Mosaic Prompt Grammar

Draw one high-resolution square image: a ceramic mosaic workshop for GPT Image 2 experiments. The surface is a half-built wall mural made from loose glazed tiles, grout channels, alignment spacers, color chips, and small kiln tags. It demonstrates image prompting as tile grammar: subject tiles, context border tiles, lighting glaze tests, caption tesserae, edit-replacement tiles, and aspect-ratio frame mosaics. Make the artifact tactile and modular, with a tile cutter, damp sponge, tray of fictional symbol tiles, and a small paper legend using invented words. Original fictional content only, brand-free, people-free, family-safe.