works with most styles - weight could be 0.5 - 0.7 - trained for 768 (may have better results)
may need to add 3d, or realistic, in neg for certain 2d/anime styles due to having more 3d image training
V3 - ME3 - jack is no longer trained in ME2 jack - separate loras
to keep close to her old design try any of these - or put in Neg (changing appearance/outfit)
For appearance
Jack, black lips, ponytail, ear piercing, brown eyes,
could switch to bald, for the ME3 - suggest pointy ears, blue eyes, in NEG
tattoo may be more or less accurate based on many factors, or just put in NEG to attempt removal - can try - chest tattoo, stomach tattoo, arm tattoo, etc
if topless there's a chance of (nipple piercings,) put it in NEGs - your better off finding a style/lora that focus on that and mix it with this
for outfit - ME3
open leather jacket, white wrappings, cargo pants, hip cutouts, belt, boots,
for outfit - ME2
navel, orange top, orange pants,