A highly detailed, ultra-sharp digital illustration of a sunflower head, isolated with no stems or leaves. The center of the flower is deep black with intricate swirling patterns of blue and yellow, creating a mesmerizing vortex effect. The petals shift in a stunning gradient of fiery orange and rich teal, creating a bold and dynamic contrast. Each petal is individually detailed with subtle highlights and shadows to enhance depth and texture. The background is pure white to allow for easy removal and image manipulation later. The artwork features clean, precise lines and a 4K resolution for maximum clarity.