Photo compositor / photoshop for a surreal YouTube banner — glass box in a white room (NO AI)

**The concept** A large, empty, all-white room. In the center sits a clear glass box filled about a foot deep with sand. I’m inside it, sitting in a blue-and-white striped beach chair. Reference: the glass box from the Billie Eilish & Khalid “lovely” video. **Key requirement** The box has t...