A Tiny Train Inside My Coffee

Create a whimsical 3D close-up of a steaming coffee cup on a wooden desk, with a miniature subway train circling inside the coffee surface as if the drink contains an entire underground world. Start from an overhead angle, then descend toward the rim and track beside the train through the swirling crema. Use a macro lens, shallow depth of field, and a gentle circular camera move that reveals stations carved into foam, glowing signs, and passengers made from tiny paper figures. Warm morning window light mixes with cool tunnel illumination. Make the coffee ripple naturally around the rails and finish with steam forming a glowing map above the cup.