Envision a colossal extraterrestrial reptilian creature, similar to a dinosaur, with iridescent scales that shimmer in a spectrum of unknown colors. Its elongated body supports multiple sinewy limbs, each equipped with bioluminescent, tendril-like appendages. The alien dinosaur's head features three luminous eyes that pulse with an otherworldly intelligence, and its maw opens to reveal rows of crystalline teeth. Towering in a landscape unfamiliar to Earth, the creature emits a low, resonant hum that reverberates through the alien terrain. This scene is set in a raw, unfiltered style, capturing the creature's primal power amidst a backdrop of swirling, vibrant cosmic mists.