crystal maiden (series), absurdres, artist request, game cg, highres, official art, variant set, 1girl, blue skin, breasts, cleavage, colored skin, earrings, earth (planet), floating, full body, gun, hand on own knee, holding, holding gun, holding weapon, jewelry, navel, pink eyes, planet, pointy ears, sephira (crystal maidens), sitting, solo, tattoo, tentacle hair, transparent background, underwear, weapon