Freddy Fazbear, Nightmare version, SFM (Source Filmmaker) style, menacing pose, sharp claws, exposed endoskeleton, tattered animatronic suit, rusted texture, glowing red eyes, horror theme, dark ambient, flickering lights, dilapidated pizzeria background, scattered pizza boxes, cobwebs, 3/4 view, dynamic shadows, eerie atmosphere, close-up on face, high contrast lighting.