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 3d influence - 0.8 or lower
Pony XL - TW is Sarynxl, - may make more examples later - may re-train if needed
For appearance/for attire
Saryn, helmet, - may need use of NEG to keep SFW
High heels, bodysuit, gloves, etc, may enhance - suggest fur trim, in NEG
adding clothing options may make character more human
adding body size enhancements or reduced effects is easier
adding any face prompts may trigger eyes/lips under or on helmet
certain styles may force eyes or face - so use of NEG may be important
adding colors in neg may help keep consistent color scheme