Ok, I'm a Eula simp and this doujinshi is just fucking amazing.
Witty retorts and comments, fun situations, sexy dialogue but all within what the actual characters would do.
Then comes the artwork, by Barbatos Calamari's art is spectacular. The pencil-like strokes and coloring are fantastic, I don't know how, but she made me see colors when it's a gray-scale work. The expressions, the details, the highlights of the moments.
This is the first work of this type I purchase and by the archons, it has set a high bar for the future.
Extra points: I have a boot fetish and I love booty, Amber was what made me try Genshin and then Eula was the reason I stayed for that long and this work highlights all of that, so they naturally are points in favor.