A highly detailed miniature terrarium in a square glass case, approximately 20 centimeters in size, showcasing lush green plants, steampunk, moss-covered rocks, ferns, mechanical elements, pipes, and a central metallic structure. It features bright lighting, vibrant colors, a serene atmosphere, hyper-realistic textures blended with a 2D anime illustration style. It is placed on a table, ultra-high definition, 8K resolution, photorealistic rendering using Unreal Engine 5 effects, enhanced visual details, sharp focus, dynamic composition, and a mix of natural and industrial elements.