close-up of a rugged octopus tentacle, thick and powerful, torn suction cups, deep scars, subsurface scattering skin (RGB 180,90,80), slime and ocean residue, glowing regenerated tip, rust stains, moist reflective surface, photorealistic, 8K normal map, dynamic ink mask, asymmetrical damage, cinematic lighting, hyperrealistic texture, wet gloss, deep sea creature, AAA game model reference