Below, a pencil drawing I made of M'ress sometime in the mid 70's, when I was about 16 or 17. I've posted this before, but thought considering the topic it would fit good here in case some had missed the earlier entry.
Bonus: Below we see the cover of the second Blish original Star Trek novel, started by him before his death and finished by his widow, Judith Ann Lawrence, who often co-wrote his books with him and had in fact finished the last adaptation, #12, when Blish sadly passed away before completing it. "Mudd's Angels" was published in May of 1978. The cover art is by one of my genre favorites, Bob Larkin, who invokes the feeling of the earlier adaptation covers depicting the starship in close proximity to similar alien planet surfaces.
Below is the back cover, continuing the style seen in all the other direct adaptations in the series.