A scientific botanical cross-section illustration of a mature oak apple gall (Andricus kollari) revealing intricate larval chamber network, layered parenchyma tissue, and protective woody exterior shell on aged cream paper, handwritten Latin annotations describing each gall structure and insect lifecycle stage, measurement scale in millimeters along the edge, soft natural daylight from upper right casting delicate shadows, museum archive quality, Pantone-accurate warm amber browns with creamy white inner chambers and subtle rust-colored larval residue, composition centered to showcase the radial chamber architecture, mood: biological precision capturing parasitic wonder, hyperrealistic details of tissue vein patterns and central larval cell structures visible