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 - lower weight for less 3d influence - 0.8 between 0.6
V3 - attire and helmet should be a bit more consistent
For appearance/for attire
Valkyr, - - - - helmet,
since her default head is damaged - it may provide different results,
there may be some prompts the could help attire like heels, or gauntlets, boots, claws, neck collar,
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