For half year I was only 1 time in "most liked fake" - I was at first upset, but then I did not care. The biggest problem is on this site - fakes are not criticized here. Basically, because of this, I was not comment on the fakes of other authors, because it would not be honest on my opinion to only praise. Criticism from experienced artists is the main engine of progress for the fakers.
Therefore, you need to learn analize evrey aspect of your fake yourself. You must learn to see and correct mistakes.
I can only give some tips and what first to pay attention to.
In order to make the good fake you need:
The similarity (preferably) to the real structure of the body of a celebrity.
Good matching of the direction of light and shadows.
Good matching of the anatomical angles and head size, natural face contours.
Good matching of color, tone, contrast, saturation, brightness and darkness.
Good matching to skin and hair textures by sharpness and blur.
Good hair mixing.