portal gun, Chell, female protagonist, orange jumpsuit, white tank top, long fall boots, action pose, holding portal device, futuristic, Aperture Science facility, sterile white walls, metallic surfaces, blue and orange portals, companion cube, turrets, GLaDOS, puzzle-solving, high contrast lighting, dynamic shadows, wide-angle shot, science fiction environment, clean and sleek design, advanced technology, physics-based gameplay elements, interactive objects, suspended platforms, 3D composition, ambient occlusion, detailed textures.