Overall he is much better, the only thing for me is that he still look like he didn't eat or drink anything for some time, I don't know if this is how he will look like after the time skip or just the new base model to replace the old one, but i hope that he look more healthy after the time skip.
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About his face, it looks like he hasn't been getting much sleep, but compared to the previous version, it's much better, also if this is after the time skip, it would be good to give him a new hair style to show that he's taking care of himself, and it would help give the impression that he's healthier, as I mentioned before.
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As for his body, I didn't see many changes, besides his chest getting more muscular, but it would be nice if he looked more muscular, since he's going to have a harem of at least 7 women, it would make more sense if he was more muscular to be able to take care of them all, I know there's a tea that makes them have super stamina and libido, but even in the first game the MC could handle all the girls for some time sleeping with each of them every night, and sometimes more than one, so it would be hard to accept a skinny and malnourished guy sleeping with a bunch of women without running of stamina, even with the tea.
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Finally, regarding his height, I've seen a lot of comments about this topic, some of which I think are valid, others not.
In my opinion, the real problem was never his height, but rather the way the scenes were made.
For example:
Understand that I'm not saying that the characters' proportions are wrong, just that the way it was shown, it gave the impression of the MC being shorter, and that's probably why there were so many complaints, but I can't deny that I liked that he increased in size a little.
Again, this is all just my opinion, but i really hope i could help the dev in some way, i loved the first game (even with all his problems) and i'm really looking forward for this one.