Which was the one that he really painted with the subject present?
Did she posed only once and the artist put on the clothes on the later other?
Look at the expression on the nude one. Notice the eyes. Looking straight at you, or rather to the painter. Inviting? Looks like she's enjoying herself.
Now look at the clothed one. She wasnt having so much fun this time. Bored or totally lack of interest. What do you think?
I dont believe someone could have a body like that. Goya must have loved her.