Viletta Vadim, from Super Robot Wars OG (and many other SRW games).
Should work with various artstyles, and can replicate the game or anime artstyle fine depending on the tags, see the preview images for a few examples.
Appearance:
srwVltt, 1girl, solo, blue hair, short hair, sidelocks, blue eyes, lips, large breasts,Uniform:
vlttDef, uniform, choker, high collar, collarbones, bare shoulders, white shirt, grey vest, blue lapel, medals, white pants, crossed arms, sunglasses, covered eyes,Pilot Suit:
vlttPlt, red pilot suit, undercleavage, underboob cutout, bodysuit, shoulder pads, chest armor, silver armor,