What should be changed?

No magnets! Better rigging and JCM, eg loose the flat on the thighs when they are bent forwards, improve the bending for collars, elbows, and knees. Visible translate and scale dials for the eyes. Fix the eyes so that they scale correctly when the head is scaled. Feet flat on floor in zero pose. Leg IK off by default. Better default texture. There are probably a lot of other things, but those are some that mediately spring to my mind.

Or just forget about Victoria and use Antonia instead.