Zion of Olympus i have to admit that you were right about putting so much faith in Devil-V. He really is a talented artist, and i can tell he polished his work as much as Kainkout.
I was one of the members that were really worrying about the new art style but now that it is here i am satisfied with it.
Either way i have a few suggestions that i would like you to know, hoping that the art of Devil-V can benefit from it:
Bigger Breast size - There seems to be some kind of limit that Devil-V has for them but for certain character like, Queen Domina, Medea, Duchess of Leaf clan or the angels it will be madatory to break through that limit and give Bigger Breasts.
Areola/Nipple Variety - Areola can be bigger too and there can be more types of them. Kainkout was already making different types like inverted nipples or marks around areola (Once again i have to highlight the Mushroom Succubus)
Breast Gravity - The gravity will be key to give diversity to the breasts, Devil-V art look like the breasts are standardize.
In the other hand Kainkout tried to make the breasts different by adding more or less Breast Weight.
About the Butts, there isn't enough butt sex scenes to give a true opinion(i hope we see more of them later) a cowgirl position with a front angle of view would be ideal to give a overall impression but i will comment with what we have at the moment.
I liked the butt growth in the Polite Succubus, there i think Devil-V as potencial to make bigger butts than Kainkout which is a good thing.
But i think there should be more texture in butts to make them look thicker, for longer butt crack and to make good hand squeeze scenes(to achieved that i don't mean thicker drawing line).