D4rk_f4nt4sy_illustr4tion, dark fantasy illustration in a hatched style, with thick lines and pronounced textures. A colossal Diplodocus dominates the foreground, its long neck and massive body fully visible, standing majestically. Behind it, several other Diplodocus roam the prehistoric plains, their immense forms creating a sense of scale and herd movement. The environment is purely prehistoric: vast ferns and cycads, low vegetation, scattered rocky outcrops, and distant volcanic hills under a hazy sky, emphasizing the primeval, untouched Earth.