The book is called Lester Gaba, and when you look closely, the shadow below is Cynthia. On both sides of each page are Gaba and Cynthia (without external decoration, she is just an ordinary model).

 

 
On the tracing paper in the middle, I use pink to represent those external decorations, which belong to both Cynthia and Gaba. From an ordinary man, Gaba put on a wig, jewelry, fine makeup , put on a skirt , and finally stood in the window. 

 

When he turned over the transparent sulphate paper, he was standing there alone.This is not a book about gender or transgender. I can say this is just my interpretation of the story.