I love gender bender content in general, and that's why I've noticed this thread: I have notifications for the "transformation" tag.
Nevertheless, I'm not comfortable looking at this. It looks like something that's heavily violating not only this forum guidelines, but also common sense.
Again, I have no problem with erotica and I think that everyone should be free to do whatever he/she wants...unless he/she is hurting someone else. And this feels creepy to me.
I work with 3D graphics, and, without any doubt, childhood morphs have been used here. I don't recall the original figure that's being used, but it's not very different from a pre-made one, that looks much older by default.
The product whose morphs have been used is from Zev0 and it's called "Growing Up". You can notice it by the position of the belly compared to the hips in the promo pictures.
On that morph, it's clearly shown that the age is under 15. So don't tell me the characters are all above 18, I won't fall for that.
By the way, if you want to work on not-creepy projects, you can adjust the hands pose in the PowerPose pane, and remember that the lowest point of the scene will be counted as the floor, if you're using an HDRI instead of a standard environment. You can group all the assets and press "CTRL+D".
Then, you forgot to apply the materials on the pants in one of the promo pictures. For that, select the item, and look in Smart Content->Files, with the filter on. Or use a shader.
Plus, there are many permeations, so posing needs more attention.
I get there are people who will disagree with me, but I also see I'm not the only one who has thought about it this way.
Again, I know it's just my opinion. But I felt it was right to express it.