I wish I could help but I don't know how to do the screen shot. The 5s are in the 4 corners, if that helps you get started. It's a picture of a face screaming, pretty centered so look for horizontal number clues that can be exactly center. Example 5-5-5, the end 5s are in corners, center 5 is exactly center of puzzle. Good luck!
The whole thing is symmetrical except for two extra squares on the bottom left side. You are forming a face with high pronounced cheek bones. The eyes slant downward from the center. Hope that helps anyone who is still stuck after the hints.