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