To change her to a female you simply need to select one of the built in default female skins. Select the model, Select Root, Skin Select, then change the skin to a female skin. If you want also go to the male morphs tab and uncheck use female morphs on male.
You have great taste dear creator... I knew this lady, she's one of my favorite amateurs! And this is a 5/5 look, my new VAM waifu <3 Please make more realistic trans ladies <3