Create a 3D model of a blue whale, the largest animal on Earth. The whale should have a long, streamlined body, grayish-blue skin with lighter speckling, a flat U-shaped head, and a large blowhole. Capture the whale's pleated throat grooves, small dorsal fin located towards the back, and large, broad flippers. Ensure realistic proportions and texture details to reflect the massive size and gentle nature of the blue whale.