Apprentice wizards study potions in a candlelit oak greenhouse

A sophisticated, highly detailed fine-art oil painting in the style of Rembrandt, depicting an advanced Botany and Potions class inside a giant hollowed-oak greenhouse. Warm golden candlelight from brass candelabras illuminates a heavy iron cauldron bubbling with glowing turquoise and magenta magical vapors. Young apprentice wizards lean over a long rustic mahogany workbench covered with glowing bioluminescent plants, vintage glass vials, brass scales, and leather-bound botanical manuscripts. Dramatic chiaroscuro shadows, painterly impasto textures, high tactile detail on dark wood, glass refractions, and metallic surfaces, high technical skill, 8k resolution, masterpiece.