Reactions to Bentley's cover work has been overwhelmingly positive:

• Mitch, I just wanted to tell you that the cover art for the Vol 1 of Redgunk is superior; subtle, wonderful. I just can’t tell you how pleased I am with the cover. Thank you for doing it!
  — Author William R. Eakin - Redgunk Tales: Tales from the Kudzu

• Just wanted to let you know how much I like your cover design for my book, The Sea at Mughain. I like the lettering, and the Celtic border, and the look of age. Thanks for your good work.
  — Author Jennifer Sparlin - The Sea at Muguin

• Just wanted to thank you and say that the wraparound zombie-space cover for FRESH BLOOD looks fantastic. You really followed my unique vision down to a tee! Your work is amazing and I don't know how to thank you enough.
  — Author Lawrence Dagstine - Fresh Blood: Tales from the Speculative Graveyard
  

• I think the cover looks good. Intriguing expression on Andalarn's face :) I like the tower in the background as well as a hint of smoke billowing from it. Very subliminal, and I'm probably reading more into it than even the artist meant, but what the heck.
  Please give him my thanks and congrats on a well-done cover.
  — Author H. David Blalock - Ascendant
  

• Hey Mitch! You do some awesome covers! (Including mine!!!)
  — Author M. H. Bonham - Serpant Singer and Other Stories and Runestone of Teiwas
  

• Just wanted to drop a line and say thanks. It really is a great cover, and made a lot of sense when Tyree showed it me. It was almost as impressive as the Drabbler Special cover I hear you’re responsible for (in which I also have a story). It’s just superb.
  — Author Edward Cox - Walking Like Morpheus

• I just wanted to drop you a line to let you know how much I loved the cover art your created for my novella published with Sam's Dot Publishing. It really captures the feel of the piece. I'm especially pleased with the way you brought the steampunk aesthetic to the fore.
  — Michael Merriam - Horror at Cold Springs