Mysterious, blue-green mib marble alien, glowing iridescent skin, intricate swirling patterns on chest, slender arms, long fingers, sharp claws, big round eyes with vertical pupils, antennae-like hair, delicate wings sprouting from back, posing in mid-air, floating amidst a nebula of shimmering stardust, dark purple background with subtle galaxy texture, cinematic lighting, 3/4 composition, soft focus on the alien's face.