3D Model: Highly Detailed 3D Model Of A Fresh Head Of Lettuce (Lactuca Sativa), Showing Layered, Broad, Wrinkled Green Leaves Forming A Loose Round Rosette. Outer Leaves Should Be A Darker Green With Natural Curl And Slight Edge Browning, While Inner Leaves Are Lighter, Smooth, And More Compact. Include Subtle Surface Texture And Visible Veins On Each Leaf. Leaves Should Overlap Organically With Natural Variation In Size, Curvature, And Orientation. The Base Stem Should Be Slightly Visible At The Bottom Center. Lighting Should Be Soft And Realistic. The Model Must Be Centered, Cleanly UV Unwrapped, And PBR-texture-ready With Quad-based Topology, Suitable For Photorealistic Close-up Rendering. Plain Or Transparent Background.