The only complaints I have about Agata go towards some of her doujins, both images related. While Agata's never done NTR, I'm still not a fan of cheating or an emphasis on it. In my opinion, /ss/ is generally best when you assume that all the mothers are either single or "swinging" with their friends' sons, whose mothers in turn are banging the other moms, such as with Jitsuma's Son Swapping doujin. I'm okay with characters having a previous sex life or having been divorced or broken up, but I'd rather all female characters be single prior to the story.
As for the second image, there's a general trend, especially among westerners and non-Japanese Asians to give shotas big penises, even hyperpenises. Even worse, it looks like if this doujin got a third chapter, the dick growth will be permanent. I'm not surprised that it also happens to focus on a loli as well. Agata's appeal is in the shotas looking like, acting like, being sized like, and fucking like shotas, in addition to them having sex with large-chested women. Considering how strong the demand is for huge dicks, male dominance and NTR, I hope Agata doesn't get on the bandwagon and turn into Hana Hook. A shame too, since the doujin the second image is from is the closest we'll get to a straight shota equivalent of Youkoso! Sukebe Elf no Mori.
Lastly, I feel that compared to other artists, Agata's women tend to resemble what you get when you take an old H-game focused on cute slender girls and try to maximize the size sliders. While they're drawn big, they don't really have standout rears or legs.