Craft a stunning illustration of a silvery universe with a central planet as the focal point. Utilize digital painting techniques to create a vast, expansive space filled with shimmering stars and galaxies. The central planet should stand out as a beacon of light, radiating warmth and energy amidst the cosmic expanse. Incorporate subtle variations in color and texture to add depth and dimension to the universe, enhancing its visual appeal. Pay special attention to the lighting, using soft, diffused light to illuminate the scene and create a sense of depth. Experiment with composition to draw the viewer's eye towards the central planet, evoking a sense of wonder and awe at the beauty of the cosmos.