lmao I am so indecisive, I'm trying to redesign my character Sienna a little

from left to right:
1) original design (mostly?? I originally got them from ali like a year or two ago but I have totally lost the pics)
2) trying to keep to the original, just getting some cleaner color and stuff
3) redesigning to make her design a little simpler like Casey's
4) Casey, her sister, just for reference

between the middle two which do you guys like better?
knowing me I'll just make one of them another sister of theirs oops