Hello!
The licking should be normal - it is either a sign of affection, or it is just because your guinea pig like the taste of your skin.
You might have a little salt on your skin (which is from sweat) and that is another reason why she is licking you.
And about the behavior - your new guinea pig needs to get used to many new things, including you, new noises, the cage, the other guinea pig and more.
So I would say, if you just hot your pig recently, give it a little time to get used to her new home. (I would say about 2-4 weeks)
And if this behavior then continues, I would recommend to see a vet.
But I am sure that nothing is wrong with your guinea pig - she just needs some time to get used to all the new stuff.