A hidden detail i noticed

I watched the movie a couple months ago so some of the details might be skewed but did anyone else notice that when natalie first showed the picture of her boyfriend he is clean shaved but when later on the same picture is showed again he has a moustache, and some time later the same picture is shown again , this time he has a moustache and a beard. Again the order of the pictures might be skewed by me because i don't remember everything properly but there definitely was some variation in the facial hair