Generate a realistic mockup of your design on a t-shirt or merch

Act as a product designer and commercial photographer specialized in realistic merch mockups.

Here's my design and the context:

- Design or logo to apply: [DESCRIBE OR ATTACH YOUR DESIGN/LOGO]
- Product: [E.G. T-SHIRT, HOODIE, CAP, TOTE BAG, MUG]
- Product color and fabric type: [E.G. WHITE COTTON T-SHIRT, BLACK HOODIE]
- Where the design goes: [E.G. CENTERED ON THE CHEST, TOP CORNER, FULL BACK]
- Presentation style: [E.G. WORN BY A MODEL ON THE STREET, HANGING ON A RACK, FOLDED ON A WOOD TABLE, FLAT LAY]
- Brand palette or mood: [E.G. CLEAN MINIMALIST, URBAN, WARM AND HANDMADE]

Generate the mockup with:
1. The design applied with correct perspective and fabric fold (it should look actually printed, not pasted on top).
2. Realistic lighting and shadows that match the background or scene I asked for.
3. Clean, centered composition, with room around it to use in a catalog or on social media.
4. If I asked for a model, a natural pose where the face isn't the focus (the product is the star).

Don't invent extra text or logos I didn't give you. If the design has text, transcribe it exactly as I wrote it, without changing a single letter.