Lots of work there. My only recommendation at first glance is to take a look at the line of faces in the top row, glance back at the faded image, and try to make out their facial features as a gestalt, in other words a pattern we recognize as another person. Then take that general impression and go back to your faces and make them a bit more natural. For instance, the left cheek on the standing girl looks puffed out and her expression in the original is different. The littler girl on the left looks more like a doll than a girl. The others look pretty good. Maybe you got tired at that point
. The man needs a little more facial reconstruction but that is obvious.
Congratulations in pulling something out of next to nothing. Good job.