Well you cant really..
To be quite honest this is a very orginal submission and I admire your creativity for this sort of thing, but you cant really create "your" face, mainley because most of the pictures are that of the funny quality so you get a few laughs out of it, but not really what you came to do. It was fun to click the randomise button and seeing the weird faces that there were, but thats really the extent of how good this is. The good thing about this is how well the faces were created. Nice job.