Create a striking 4K image featuring a complex, multi-faceted polyhedron as the focal point, with each face reflecting a vibrant spectrum of holographic colors, including greens, yellows, and purples. The polyhedron should exhibit a blend of reflective, transparent, and opaque materials to achieve a crystalline appearance, enhancing its visual complexity. It should hover above a detailed laser grid plane, where beams of light form a precise digital mesh across the surface, adding a high-tech ambiance to the composition. The background must be a dark gradient enriched with subtle light streaks, creating an illusion of depth and dimension. Emphasize the polyhedron’s edges with soft glows and refraction effects, highlighting its holographic texture and giving it a sense of otherworldliness. Surrounding the polyhedron, incorporate abstract shapes like 3D cones, pyramids, and vector-based structures, all rendered with slight transparency to capture and reflect the grid’s laser light dynamically. The overall composition should remain clean, minimalist, and futuristic, with meticulous attention to detail, including reflective highlights and light scattering effects that enhance the immersive quality of the image. Ensure the final output showcases each facet with clarity, aligning with contemporary digital art standards for a professional and captivating visual experience.