a mesmerizing digital art image in the Op Art style featuring a highly detailed gnome sitting under a mushroom. The main color scheme should consist of high gloss jet black and marbled white, creating a striking contrast. Add hints of acid green and glowing neon red to infuse dynamic energy into the composition. Use optical illusions, patterns, and shading techniques to make the image appear three-dimensional and surreal. The final artwork should capture the essence of both Op Art and the magical scene, leaving viewers intrigued and captivated by the visual depth and vibrancy of the piece