Futuristic teenage boys before a colossal sci fi fortress

Futuristic sci-fi, massive group of 90000 teenage boys, full-body, 17 years old, gray skin, short purple hair slick back, yellow glowing eyes, combat gloves, black armored clothing with yellow neon stripes, massive black mechanical military fortress, swamp terrain with withered trees, outdoors, yellow circuitry, cybernetic technology, in black with yellow neon LED lights, circuit board, yellow fog, yellow lighting, dark yellow fog, yellow space background full of cosmic storms, divine atmosphere, vast darkness of the void, yellow bioluminescence from outer space.

Watermark, red, blue, navy blue, baby blue, green, orange, teal, lime, pink, purple, white, gray, brown, silver, violet, ugly, deformed, noisy, blurry, distorted, static, terrible graphics, out of focus, bad anatomy, extra limbs, poorly drawn face, poorly drawn hands, missing fingers, nudity, nude, NSFW, disproportionate, out of place.