grimdark army female dressed in combat suit, the galactic defense order, A soldier of humanity's last defense, brutal look, grimdark galacic chaos, dressed in worn and battle- scarred armor. Her face shows determination and fatigue, with eyes reflecting the harsh realities of war. The armor is adorned with dark symbols and ancient runes, and she wears a helmet with a broken visor. In one hand, she holds a well- used energy sword, and in the other, a futuristic rifle with flickering lights. The background depicts a desolate and apocalyptic landscape, with smoldering ruins and dark, stormy skies. The atmosphere is grim and oppressive full height, average proportions, cybernetic implants, cinematic, visually rich, concept art, luminous, dimly lit dark environment, subtle colors, ultra sharp focus, photorealistic, The overall color palette should include psychedelic colors Camera and Settings: Use a Canon EOS 5D Mark IV with a 24- 70mm f/2. 8 lens. Settings: ISO 100, aperture f/8, and shutter speed 1/125s to capture a sharp, vibrant image with a wide depth of field. The poster should have a slight grain effect to enhance the retro aesthetic