Looking through it closer now... most of it, as you can imagine, is the art that went with the manga from Hana to Yume, i.e. the color pages. There's also a few pics from CD giveaways, etc.

There are 4 pics that are done exclusively for the artbook:

1) (ToaL) Kei and Kyosuke's graduation, with them smiling and holding diplomas.
2) (ToaL and IHYMTA) The main cast of both series, in a field. This is also used as the front/back cover. Left to right: Kazuha, Kei, Kyosuke, Sugimoto (these 4 on the front), Honjo, Senko, Suwa (with cuddly lambs) (these 3 on the back).
3) (IHYMTA) Honjo and Senko's wedding picture, to go with the Kazuha/Sugimoto wedding pic used as the cover of IHYMTA 13. Yes, he's smoking.
4) The Akiyoshi family + Sugimoto, at the ages they are for their own romance series (i.e. they're teens and adults). L-R: Chizuru (with glasses, 24), Momoka (with long hair, 22), Tonami (looking much the same, 17), Rei (looking the same, 13), Ichihisa (more evil and less idiotic, 15), Sugimoto (32), and Kazuha (25). So about 3 years before VB Rose. The left half of this picture was used for Volume 1 of the Akiyoshi Series wideban reprint.

There's also some color pics from the Akiyoshi serialization in HtY (2 with Chizuru, one with Ichihisa (looking particularly evil), and 1 with Momoka), a collage of B&W title pages from IHYMTA and ToaL, some design notes (mostly for ToaL), and Banri chatting at us for a couple of pages.

Holy crap, I imported the Banri Hidaka artbook, and it is everything I hoped for. It came out right as Tears of a Lamb was wrapping up, and the first third or so is Tears pics. Then the next 30 pages is I Hate You More Than Anyone art, and it ends with a few pics from the other Akiyoshi series and some misc stuff. It also comes with a cute storybook starring a crying lamb, which is adorable and cute.

There are so many bishies in this thing I swear I almost turned yaoi fan (though her art is aggressively het, so not too much). The clothing is fantastic, as always. And the wedding! The weddings! Honjo and Senko wedding AAAAAAAAAAAAA!!!

Yes, I know, I am a girl. Oh well.

ARTBOOK! KITTY! NO, WAIT, ARTBOOK!