I've looked at three Digipaks today; Olly Murs - Right Here Right Now, P!nk - Truth About Love and 2Pac - Part 2: Life. They're all three panelled digipaks, so six sides in total.
Both Olly Murs and P!nk's Albums are distributed under Sony Music Entertainment, as a result both digipak are visually similar, both are three panelled, the albums covers, fonts, and house colours are different as both artists major in different genres, however once you open the digipak, it is nearly exactly the same!
I also looked at 2Pac's Album, again it is a three panelled digipak, straight away you can see it is not visually as exciting as the other two digipaks,