Supergirl/Powergirl from "Justice League Unlimited". I recommend using 0.7 strength but anywhere from 0.7 to 1 should be fine. All images are made using the AutismMix_Confetti model found here on CivitAI. There are 3 different outfits that this Lora was trained on, her original outfit with the white shirt and gloves, the powergirl outfit, and her later outfit with the blue shirt. Adding "retro artstyle" will give you a closer art style to the orginal show, and on the flip side of that, adding "retro artstyle" to the NEGATIVE prompt will make it easier to use a different artstyle.
SUPERGIRL, DC COMICS, BLONDE HAIR, LIGHT BLUE EYES
LONG HAIR, BLUE SHIRT, CROP TOP, LONG SLEEVES, RED SKIRT, RED BOOTS, KNEE BOOTS, CAPE
LONG HAIR, HAIRBAND, WHITE SHIRT, CROP TOP, BLUE SKIRT, WHITE GLOVES, RED BOOTS, CAPE
SHORT HAIR, WHITE LEOTARD, LONG SLEEVES, GOLD BELT, WHITE GLOVES, WHITE HIGH HEEL BOOTS, LOW CUT BOOTS, CLEAVAGE CUTOUT