So I've been silently following this for a while, and I figured I'd finally get around to writing some thoughts and suggestions. None of the suggestions are demands or anything, but well-intentioned ideas, and I'm sure you've seen some a million times already and are tired of seeing them, but I figured I'd bring them up anyway. Plus, they all involve going back and making changes to some of the previous days, so I totally understand not soing any of the suggestions.
General: I feel like a lot of the Weight Gain/Loss choices are a bit boring. I feel like more (but not all) of them should have other "consequences" to go with them.
I feel like there ought to be one or even two more "levels" between the second and third morning muscle portraits. At one point I got the second one, then got my weight checked that day and it was 167kg, so the "skinny" portrait felt kind of silly.
Related to the previous note, I know this would be a lot more drawing, but I would like to see a kore gradual increase in muscle mass in the morning pictures.
...And, if you don't know how you'd arrange it in the gallery, maybe you could do it as a sort of "chart" where the horizontal would change one variable (muscle or weight) and the vertical would change the other. I know you've previously said that you hoped you wouldn't need to rearrange the gallery again, but I just thiught I'd mention it anyway.
Chapter 3: The breakfast WG feels kind of out of place in the context of all the other WG scenes in the game. It's such a small extra amount of food compared to a lot of the others that it just doesn't "fit in." I don't really have a suggestion regarding this, just an observation.
Chapter 5: It feels a bit odd to me that, during the dinner scene, giving the extra burger to Oken increases his relationship, but the same can't be said for Ian. Unless of course it does and no icon shows up. And if that's the case, then that's a bug.
Chapter 6: I feel like the choice to actually go to swim class should be the first instance of muscle gain. As it stands, it's notably a far more "boring" choice than the other two.
Chapter 8: I feel like the NSFW scene with Ian should be "earned" more. Maybe behind either relationship with him, or being okay with him not wearing shorts in Chapter 4 if you stay with him.
Chapter 10: This one is kind of an odd one, but I think it would be interesting if not bringing Jim along to lunch would have Athian buy a large meal for you, causing a WG ( something like "oh, this place is too expensive for you? Well, you seem nice, so have one of my favorite dishes on me."), or something along those lines. I think that it would be an interesting dynamic where you have to consider raising relationship with Jim if you don't want to gain weight there, plus keep in mind that you have to miss out on either a WG or a relationship+ with Jim if you otherwise want both.
Chapter 12: I think it would be interesting if having enough muscle could prevent the forced weight loss at higher weights.
Chapter 14: See chapter 12 about the forced weight loss moment.
Chapter 15: The choice after getting the perfume is visually bugged: the screen overlay and glow around the third choice persist after making any choice.