A black cat perches atop glowing jack-o'-lanterns before a gothic castle at full moon

A sophisticated, highly detailed fine-art oil painting in the style of Rembrandt, capturing a quintessential Happy Halloween night scene. In front of a mysterious gothic castle under a giant luminous full moon stands a towering stack of intricately carved, glowing Jack-o'-lanterns casting warm amber light. A sleek black cat with glowing eyes sits proudly atop the highest pumpkin. Swirling autumn leaves and gentle volumetric mist drift around ancient gnarled oak trees. Rich chiaroscuro contrast, painterly impasto textures, high tactile detail on dark wood and carved pumpkin skin, high technical skill, 8k resolution, masterpiece.