I got the first four right. I never would have guessed St. Peter the Martyr or St. Mark.
I would have never guessed St. Mark . . . if you look closely you can see the book so that hints "evangelist", but how am I supposed to know it's Mark without his lion? I didn't have any trouble with St. Thomas or St. Benedict, thought it might be St. Dominic because of his special devotion to Our Lady . . . but St. Peter the Martyr? (everybody knows St. Francis!)