That second response is a typo. It should read "The current administrator reviewing your work doesn't know wtf they are doing. Please try again in a few hours when it's past their bed time."

That being said, you may (or may not) have transparency issues if you have used 'pure' white or 'pure' black in your image. Try altering the eye/mouth color as well as the 'shine' spots on the eyes and head and resubmit.

If you get the same message again, wait 3-4 hours and you may get a different admin. Everyone who tries to submit anything goes through this. It's nothing new.