Probably too late now, but FWIW if you are working with one part or self curing silicone you really need to stick to thin layers.
Regular two part silicone cures by a chemical reaction , so you can make it thick.
One part silicone cures due to contact with the air.
If one part stuff is applied too thick then the top layer cures and seals in the inner parts.
Thus they can not get to atmosphere and don't cure.
As you found with your gummy divot.
Many folks have used the one part silicone or "tile caulk" to hold stuff up by using a big old gob.
I guess it was the "more is better" way of thinking.
Later it would not cure and the things would come down.
But in your case, no real damage.
Also they make non-silicone mold release sprays for use with silicone that work quite well.
In your case spray a bit on one side of something to use as a dam, leave the other side alone.
Apply the release covered side of the dam to the doll and use regular tape on the untouched side.
Holds in the molding stuff, the dam won't stick and easy to remove later.
Other than that ... looks good so far.
Cheers!
... W ...
