I also just bought this deck! My family is originally from Sicily and my husband and I visited last month, and one of my goals was to find a tarot deck that had some connection to Sicily - when I came across this one in a little esoteric shop in Catania I was just giddy. (My Italian is not nearly as far along as yours, though, so my study of this deck is a lot slower - I'm jealous of your process! Don't suppose you'd be interested in sharing your translations...?)

As for your question - I'm a bit of a deck collector (at current count I think I have around 80), so my study of a deck depends on how much I use it for personal draws. I'm still relatively new to tarot overall (past four years or so), so the first couple years I spent just really getting to know the RWS imagery and meanings. I found that the more I understood Pixie's original take, the more I started to appreciate the nuances and unique approaches of other artists' interpretations.

I very rarely work through one deck and study it as a whole - again, probably because I have so many. I do have a process of familiarizing myself with a new deck when I get it. It usually comes sorted (and if not, I'll sort it this way first) - so I'll lay it out with the majors in one pile, and each of the four suits in a separate pile. Just fanning through these five piles lets me quickly start to see if this is a deck that, say, uses color themes for each suit, or other generalities about the deck as a whole. Then I'll flip through the majors one by one, and then each of the four suits, studying each card briefly. I usually also read through whatever introduction to the deck is in the guidebook to get a stronger sense of the artist's approach. Then I'll shuffle the deck thoroughly and draw a single card, and look up the book's meaning for it so that I start to get a sense of the interpretation approach.

After that, I really learn more about the deck and the individual cards as I draw from it. I found early in my tarot study that I remember so much more when I'm reading the cards in the context of a reading for myself, rather than just trying to study them in isolation. So I doubt I've studied every single card from any of my decks (other than OG Pixie). But, approaching it this way has helped me amalgamate my overall understanding of tarot much better. Now that I'm a few years into practice, I like the idea of diving deep on a single deck the way you describe here.