The layer lines will show up in the silicone.
That’s called ribbing and it’s a feature.
Beeswax
https://www.billieruben.info/post/3d-printing-sex-toys-a-qui...
https://news.ycombinator.com/item?id=28819927
You could lightly sand it before using it as mold, would lessen that issue.
That’s called ribbing and it’s a feature.