1st picture example: This is highly probable the result of the camera focal length. Because of the windows between the shower cabins there wasn't enough space for the camera, so I needed to increase the focal length. This wouldn't be necessary if there'd be an option to hide this one window in the back but unfortunately this wasn't possible in Daz Studio with the geometry tool (only hiding all or none!). Sophia's "superb head of hair" is enforcing this effect even more. But you're also exaggerating with your description! You need to understand that Daz Studio has its limits but nevertheless I'm finding my own tricks to bypass many of them!
2nd picture example: I guess you mean the a little strange shadows on the pants at the bottom area. It's day 4 so I'm pretty sure this is because of some mesh lights outside of this bathroom causing it. Only at day 11, when I started to experiment with new lighting systems I came across this issue in Daz Studio! If you're using mesh lights (ghost lights) in inner spaces you can't use them outside at the same time, because they will have strange effects on the skin surfaces of the characters and also causing strange shadows in interior spaces like this is highly probable the case here with the pants! This problem other devs don't have because in contrast to them I'm using and creating "real" backgrounds for interior scenes instead of usual background images! It took a long time for me to find this issue in Iray because no one even at the Daz Studio forum had a clue of this! So calling this amateur work isn't fair because this is rather the program's fault than mine! Starting with day 11 I'm using my own tricks to bypass that issue!
3rd picture example: OK, maybe her upper body needs to be shift a few more centimeters to the right from your view. But calling this pose "disabled"??? Come on dude, really?
4th picture example: Lol "very bad hair position"??? You know that hair swims in/on water, right??? I think there's not one single dev who's paying such a huge attention on the right hair position like me (and generally every detail even the smallest and most unremarkable)! What's not possible with Daz Studio I'm correcting afterwards in PS! In every other game including "Anna exciting affection" I've seen images where hair's flying in the air as if there's no gravity or isn't touching the skin at all or isn't moving at special poses! So this is actually the last thing to blame me for!
Then: "the water effect doesn't do that" So you're a physicist by profession! OK. Then you should've heard of the term "refraction", right? Refraction of light in water? Just look at these real life images:
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The visual deformation of the body in the water changes, depending on the angle you're looking inside the water on it! By default in Daz Studio this refraction effect is even larger! I played a lot with it for this scene. Increasing and decreasing the value. And IMO this is the best (realistic) result which I could use in Daz Studio! Also "Anna exciting affection" has this effect:
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Here too: Daz Studio has its limits and you can only try to make the best out of it! Another way to bypass this would be using some different shaders for the water to make it less visible.
Well, it's obvious that you're a huge fan of "Anna exciting affection" and it's OK of course. But it also seems obvious that you're trying to find some far fetched "mistakes" in my game to drag my work through the mire and mocking my effort and ambitions! I won't analyze the work of other devs here in detail but like you've recommended me, I checked the CG of your favorite game. Yeah it has some nice renders BUT I could also find some inaccuracies and graphical mistakes! Furthermore the dev of this game has another style (using more artificial light presets than natural lighting + highly probable using the blur effect, which I myself don't like, except of some special artistic cases) which you obviously like more, what is also absolutely fine! If you don't like my art then don't spend so much time finding far fetched things to prove everyone who likes my work that I have no clue of my business! Calling someone an amateur who has an experience of around 10k working hours with Daz Studio & Co. is just ridiculous! And the result of this experience you can see in the last 4 game days in particular! And nevertheless I myself am my biggest critic and always try to get better and find new ways for better graphic results! To tell you on how many details I'm paying attention to in every scene would take probably an hour to enumerate!
PS: "terrific" means awesome! I guess the word you were looking for is "terrible".