>>10729763>>10729776You do not need to topcoat the flesh tone plastics, just buffing them evenly with a sanding sponge is enough to get the right look. So long as care is taken to apply the topcoat evenly there shouldn't be any particular problems.
You do not really need to topcoat girlpla without decals anyway, since the finish of the plastic is often fine out of box these days anyway.