A stunning, hyper-realistic 4k portrait of a woman at the Venetian carnival, featuring an intricately detailed fox mask that dazzles with lifelike textures and patterns. Her cascading blond hair, rendered with ultra-detailed precision, frames her face beautifully, embodying the essence of an exquisite oil painting. The vibrant colors and delicate brushstrokes bring out the enchanting atmosphere of the carnival, enhancing her mysterious allure while subtly blending a hint of whimsy and elegance into the scene.