In the style of a professional photographer, create an image of an alien monster that measures approximately 30 centimeters in height. The creature should blend crustacean and arachnid features. Pay meticulous attention to the texture and lighting on its chitinous exoskeleton. Place the creature in a subterranean cavern, approximately 2 meters below the surface. Use dramatic and realistic lighting to accentuate its menacing appearance. Capture intricate details such as the creature's claws (each about 5 centimeters in length), spines, and translucent membranes. Ensure the depth of the cavern extends realistically into the background.