This seems like whistling past the graveyard given the events of the week and now that Tony Todd has taken from the world - I prefer to think that he was raptured - but I got the Angelique Luminarise artbook. It's well-produced, but it can be dispensed with fairly quickly: Both the best and worst you can say about it is that it's an exhaustive compendium of all the digital art available from the game by lead artist Sayo Ichi (plus Munashichi, a talented landscape illustrator who designed the Guardians' offices).
Sorry for the binding eating up so much of the images on one side, by the way; it's a new book, and most of the images of interest are at the front or back, where the issue is most exacerbated.)
This includes an extensive collection of in-game background stills and character art of the love interests and others in the cast, of course, but it also features promo art for B's Log articles and LINE-like social media icons and the Famitsu black & white promo comics that served both to introduce characters and, via a couple old-school OL Angelique fans, the general concept of the game.
There's also a good amount of art for merchandise: art of the cast (including Ange; not Reina, though) in black leather from merch from one of the stage shows; the standee art of the Holy Bird Guardians (Julious & co.) interacting with the Luminarise Guardians illustrating the 1st/2nd/3rd Step CDs; etc.
This isn't completely exhaustive—say, art for merch for some eatery promotion of the characters dressed as waiters and maids done in a ink/watercolor French cafe style is absent, maybe due to the use of a different artist than Sayo Ichi. Most of the merch art is present, though—and this will count as digital art for most, as you're likely familiar with it primarily from photos on Suruga-ya or Yahoo Auctions.
The flip side is that, save for a few headshot sketches in back, you're not getting anything that hasn't already been released. You can still view most if not all of this online where it was originally posted, if you like. The art's also commentary-free - nothing on the pieces save for its original place of publication. Disappointingly, there's no interview with Sayo Ichi (or Munashichi), either. (Kairi Yura used to do interviews for days.) It also, save for three-and-a-half pages in back of a few headshot sketches for each Guardian, doesn't have any design material.
Angelique has never, ever been big on this; even the settei books for the Neo Ange and Koi Suru Tenshi anime have only finished, production bible-level sketch work. I don't know if it's a mandate from on high or what: the love interests must be presented fully-formed, like Athena from Zeus's head, with none of the nitty-gritty on how the design concepts came together revealed, at least visually. The odd upshot of this is that, even at fewer than 50 pages, the Maren artbook that came with the deluxe edition (viewable on this page, showing actual production sketches, rejected costumes, etc.) is probably the most extensive behind-the-scenes visual resource we've had.
Verdict: Nicely presented but not essential. Nevertheless, it's convenient to have this all collected and on paper.
I was going to conclude this with a photo of Tony Todd at the aquarium he used for his Twitter avatar, but the specific one I had in mind seems to have been wiped from the internet. Sic transit gloria mundi.
