Design an ethereal fantasy portrait of a character with shimmering silvery skin, speckled with soft gray and shining iridescent scales. Their eyes are a deep, luminous yellow, and they have delicate elfin ears with fin-like extensions. The character's hair flows in dark blue and green waves, reminiscent of the deep ocean, reinforcing their magical presence. Capture the character in a 1:1 square frame, highlighting their otherworldly beauty and the mystical, surreal essence that surrounds them.