to keep close to her old design try any of these - or put in Neg to reduce chance - SFW/NSFW
This is focused on her base look (not prime or other skins)
may need to add 3d, or realistic, in neg for certain 2d/anime styles due to having more 3d image training - or lower weight for less influence -
she had the most training compared to most frames (popular) - rather odd, I cant remember the last time ive seen her in a pub - must be the all the solo spy players
For appearance/for attire
Ivara, - -- helmet, or large helmet,
suggest cape, belts, zipper, in NEG - her helmet in general will be an issue
high heels, bodysuit, armor, - science fiction, robot, android, etc
adding clothing options may make character more human
adding body size enhancements or reduced effects is easier
adding face or eye prompts(or detail) may spawn a human face
certain styles may force eyes or face - so use of NEG may be important
adding colors in neg may help keep consistent color scheme