Create a captivating digital illustration featuring a holographic rendition of planet Earth against a stark black background. Utilize advanced digital painting techniques to render the holographic surface of the Earth, giving it a futuristic and ethereal appearance. Incorporate shimmering holographic effects, with vibrant hues of blue, green, and purple dancing across the planet's surface. Ensure that the Earth retains its recognizable continents, oceans, and cloud formations, while also adding a touch of otherworldly beauty. Surround the holographic Earth with a halo of soft, diffused light to further enhance its mesmerizing glow. Experiment with composition to create a visually striking image that captures the awe-inspiring spectacle of a holographic planet Earth suspended in space, evoking a sense of wonder and fascination.