Create a hyper-detailed digital illustration of a vibrant underwater scene that immerses viewers in the enchanting world beneath the waves. Feature a diverse array of underwater creatures, including iridescent tropical fish, ethereal jellyfish with flowing tentacles, and intricate coral formations that showcase the beauty of marine biodiversity. The composition should evoke a sense of mystery and wonder, with the creatures appearing to dance gracefully in the water, illuminated by soft, diffused light filtering through the surface. Utilize a rich color palette of deep cerulean blues, rich purples, and lush greens, interspersed with bright accents of fiery orange and sunny yellow to create a captivating visual experience. Incorporate mixed media textures—such as watercolor washes and digital brush strokes—to add depth and intrigue, blending digital painting techniques with layered textures that mimic the fluidity and movement of water. The background should feature abstract shapes and forms that suggest the gentle undulation of water currents, enhancing the overall sense of mystery. Use soft gradients and layered opacity to create a sense of depth and dimension, ensuring that the coral formations and creatures stand out against the background. In post-production, apply a subtle glow effect around the jellyfish and fish to enhance their ethereal quality, and consider adding bubbles and light rays to further enrich the underwater atmosphere. This artwork is intended for a gallery exhibition, so ensure that the composition is striking and engaging, inviting viewers to explore the hidden depths of the underwater world.