Suggested prompt

wearing a harley quinn outfit, a cropped two-tone red-and-blue satin bomber jacket worn open over a distressed dirty-white T-shirt reading “Daddy’s Lil Monster,” a segmented gold PUDDIN choker, very short split red-and-blue sequined hot pants, a black studded hip belt with a large gold diamond buckle, black fishnet tights, black fingerless gloves, layered gold wrist cuffs, and black-and-white high-heeled sneaker boots with tall white shafts and red heels

The main trigger is:

harley quinn outfit

The additional wording helps reinforce the individual parts of the outfit, especially the red-and-blue satin jacket, distressed shirt, sequined shorts, gold belt buckle, fishnet tights, and tall sneaker boots.

You can shorten the prompt quite a bit and still get good results. In many cases, something like:

wearing the harley quinn outfit

or:

wearing the harley quinn outfit with the red-and-blue pigtail wig

will already produce the complete look.

Wig prompt

The wig is included in the training data, but describing it explicitly usually makes the hair more reliable:

wearing a platinum-blonde center-parted wig with two high pigtails, pink curled ends on her right side and cyan-blue curled ends on her left side, with two long blonde face-framing strands

You can leave the wig description out when you want to use the outfit with a different hairstyle or character.

Important outfit details

For more accurate results, these phrases can help:

metallic crimson-red satin on her right side and deep cobalt-blue satin on her left side

distressed dirty-white T-shirt reading “Daddy’s Lil Monster”

segmented gold choker spelling “PUDDIN”

large gold “Property of Joker” embroidery across the back of the jacket

black-and-white high-heeled sneaker boots with tall white shafts and red block heels

The jacket and shorts are asymmetrical. Her right side should be red and her left side should be blue. Some generations may reverse the colors, especially in mirrored poses or rear views, so it can help to state the side placement directly.