Create a highly realistic and dramatic image of a Giganotosaurus

Create a highly realistic and dramatic image of a Giganotosaurus. The Giganotosaurus should be detailed with lifelike textures, dark grey and green scales, and a menacing expression with sharp teeth visible. The setting is a prehistoric forest with dense vegetation and a misty atmosphere. The Giganotosaurus is in an action pose, showcasing its powerful muscles and large size. Dynamic lighting highlights its form and casts dramatic shadows. Include elements like rocks and trees to enhance the realism and depth of the scene.