I also sniffed these at Gumps.
Dr. Vranjes is mostly know for home fragrance, the epitome of his work being his Rosso Nobile home fragrance, based on pomegranate and red wine, which I would buy as a perfume in a heartbeat, were it available.
I was intrigued by his new line of perfume extraits. Thankfully, Gumps has samples of these available if you ask. I gave full wearings to three of them, Bergamotto Mirto, Gigember Estragon, and Vetiver Poivre. Aside from a house note of mint that's shared by all three, whether appropriate or not (the bergamot/mint combo was especially interesting, if ill-advised), they all had bases which I didn't care for.
Sometimes, it feels like home-scent or candle companies (functional perfumers, as it were), which are used to making scents focussed entirely on the topnotes, expose their weakness as artistic perfumers through their weak bases (another line available at Gumps, Zents, falls trap to this same problem occasionally)
That being said, I'm simply not a fan of some Italian perfume standards (powdery ambers, toothachingly-sweet orange vanillas), so much of what I've said here may be due to my own prejudices, so take it with a grain of salt...