Pretty Darned AFRAID - but not Quite Enough
I decided to try improving on the MT result by making the mouth much more obviously stressed and stretched (top right illustration), basically eliminating the upper lip (the most important signal for disgust), hiding the upper teeth (not visible in fear, but very clear in disgust), and stretching the mouth, particularly the lower lip. My version received a 90% MT score, a really strong result for a less-than-all-out expression of "fear," with the reading of "disgust" and "surprise" basically eliminated.