Cecilian Lynn from Magical Angel Fairy Princess, a game by Umai Neko
The only protag from the Magical Angel series with a civilian name (afaik, her game is the only one with plot)
EDIT April 10th: - Remaking her in Illustrious was a priority since she was a popular model for a couple of months, before being dethroned by Aisha
Description
magicalangelfairyprincess, magical girl, blonde hair, green eyes, single hair bun, tiara, earrings, jewelry, hair ribbon, bowtie, gloves, detached sleeves, puffy sleeves, bare shoulders, cleavage, large breasts, strapless highleg leotard, back_ribbon, thighhighs, boots, high heels,