A highly detailed xenomorph alien creature, full body standing pose, biomechanical exoskeleton with glossy black carapace, elongated skull, inner jaw visible, dripping acidic saliva, sharp claws and tail, intricate H.R. Giger-inspired design, dramatic studio lighting, isolated on pure white background, no shadows, concept art style, ultra-detailed, 8K resolution aggressive pose, snarling no background, shadows, texture