A 3D model of a High-speed train, featuring a streamlined, aerodynamic design with gray and blue metallic accents, a modern, tech-savvy aesthetic. It has high polygon detail and smooth textures, suitable for film, game development, or architectural visualization.

A 3D model of a birch tree, featuring drooping green leaves and pale white bark, with a naturalistic aesthetic. It has detailed textures and is suitable for outdoor visualizations or game environments.

A 3D model of a modern spatial structure, featuring a metal frame and layered textile-like materials, with a minimalist geometric aesthetic. It has clean surfaces and low polygon count, suitable for interior design visualization or art exhibition displays.

A 3D model of an indoor elevator door, featuring gray metallic texture, double-door design, and a digital control panel with floor display. It has a modern minimalist aesthetic and low polygon count, suitable for interior scenes like offices and hotels.