You should know by now that, having been a fan of Jeff's amazing and weird art, I was fortunate enough for the World's Greatest Blind Artist and me to become friends. So take this with a grain of salt, since I am his friend.
BUY THIS COLLECTION!
It's really that good and the illustrations are really that useful. I find myself using them in correspondence, on player handouts, on mailing packages, and probably more than I can think of. They do not have to illustrate only an alchemist shop; as I said, they work in many different settings and projects.
My only complaint (and I should downgrade this and hold my breath 'til I turn blue) is that there aren't ENOUGH illustrations. Thirteen is plenty for what we pay, but I'd pay much more for many more drawings. Literally, I cannot get enough of Jeff's work.
You may not become as big a fan as I, but I have the feeling you'll be very, very happy with this package.