Design a visually captivating Op Art fashion poster that seamlessly blends dynamic optical illusions with futuristic fashion elements. The composition should feature a model in a striking, dynamic pose at the center. Surround the model with abstract geometric elements in black, white, and shades of gray, interspersed with vibrant splashes of color to create a striking contrast. The optical patterns should be designed to create a sense of movement and intrigue, making the poster come alive with energy and depth. Ensure the overall design is modern and futuristic, with a focus on clean lines and bold, eye-catching elements that draw the viewer in.