Her Wikipedia article is here. Her grandaughter Sophia Charlotte is covered here.
From the lost gallery's photostream on flickr; image made lighter by gogm.
Sophia Albertina's dress has a sheer split over-bodice with notched sleeves with cuffs, corset, and then a lace-fringed chemise in good transition style as are her fripon curls.
Keywords: Sophia Albertina von Erbach, Sophia Albertina von Saxe-Hildburghausen, Duchess of Mecklenburg-Strelitz, Erbach-Erbach family, Wettin family, Duchess, German, straight coiffure, split over-bodice, vee décolletage, quarter length notched full over-sleeves, cuffs, chemise, modesty piece, lace, close under-sleeves, corset, jeweled over-bodice, jeweled sleeves, clasps