crystal maiden (series), artist request, game cg, highres, official art, variant set, 1girl, arm up, armpits, bare arms, bare hips, bare shoulders, blue hair, bra, breasts, bubble, cleavage, covered erect nipples, full body, gaia (crystal maidens), green hair, groin, multicolored hair, navel, see-through bra, see-through clothes, shoes, short hair, sitting, solo, transparent background, underwear, yellow eyes