Create a realistic depiction of a monstrous creature that has lived for over 100

Create a realistic depiction of a monstrous creature that has lived for over 1000 years at the bottom of the sea. This creature should be ancient, terrifying, and unsettling, with features that evoke a sense of primal fear and horror. The monster's body is massive and grotesque, covered in a combination of slimy, wet-looking skin and patches of rough, scaly armor. Its form is twisted and unnatural, with a mix of features from various horrifying sea creatures. Its proportions are bizarre and disturbing, designed to evoke a deep sense of unease. The creature's head is particularly horrifying, featuring multiple asymmetrically placed eyes that glow ominously in the dark. These eyes have a sickly, unnatural glow, adding to the creature's eerie look. Its mouth is filled with sharp, jagged teeth, partially open to reveal thick, viscous saliva that drips menacingly. Additional elements like spines, horns, or bioluminescent patches should emphasize its alien and terrifying nature. One of the creature's most distinctive features is its numerous long, writhing tentacles or limbs. These appendages are covered in spikes, hooks, or suckers, moving fluidly in a way that is both hypnotic and deeply unsettling. Their movements should appear unnaturally smooth, adding to the creature's otherworldly and disturbing presence. The appendages vary in length and thickness, some extending far into the shadows, suggesting the creature's immense size. The setting is a dark, deep-sea environment. The background should include elements like jagged rocks, sunken ships, and eerie marine flora, creating a sense of confinement and isolation. The environment should be cold and oppressive, with the creature's slimy skin reflecting the minimal light available. Shadows should play a significant role, obscuring parts of the creature to enhance its menacing presence. Lighting should be minimal, using the weak glows from the creature's eyes and bioluminescent parts to create a dramatic and terrifyin