As somebody who is a breast expansion fan first and a weight gain fan second; I’ve got to say, visually you knocked it out of the park with this one. The models are fantastic, I can’t say a single negative thing about any of them. Krystal is so damn attractive but Sarah is definitely my favorite for obvious reasons 
Don’t get me started on those skin meshes and sliders OH MY GOD, the veins on Sarah’s breasts, the detail on Tracy’s ass, the weight distribution. Chefs kiss pure perfection. It’s always a pleasure to see your skills and use of detail in VaM improve every time you post new content. I’d even go as far to say these have to be the most appealing looking BE/WG renders used in any visual novel I’ve played.
The animations themselves are simple, though I doubt you would’ve had time to rig and playtest the super duper dick crushing suplex sex scenes for every wg stage like we see in FC. It is nice breaking up the static images with the varying camera angles.
That being said, gameplay wise, is it repetitive? Obviously. It was made in 14 days 
Not that I’ve had the opportunity to try them all yet but I can imagine you could say the exact same about several if not most of the submissions posted this jam and jams prior. These things take time to not just think up, but code, bug test and actually function. There’s going to be repetitive aspects plaguing a lot of these rushed games. Even your main critically acclaimed (imo) game Fattening Career, repetitiveness is an issue as well; and that games been in development exponentially longer.
With repetitiveness in mind, the dialog can be tedious. Having multiple stages, with said stages being repeated 2-3 times, and roughly 60-70% of the same text getting reused per expansion I do find myself skipping a lot of it. With the test subjects its fine, however… Holy fuck does Karren get on my nerves (is that why you named her that? Very subtle lmao). Does she have early onset amnesia? Possibly dementia? Somebody let this woman take a break she can’t stop repeating herself. Though no shade to the writer at all, that in itself also has it’s limitations. I’m guessing they wrote the script in tandem with you developing the game, either they were busy with other things or didn’t understand how the game’s dialog would pan out over the 8 stages. Aside from that I think they did a good job.
Overall this is probably one of, if not my favorite of the gain jam submissions so far. I think I might be a little different than a lot of the people who use this forum. For me these games are just another medium to enjoy fetish content, just like comics, short stories, and videos. The actual “game” itself is something that takes a backseat for me. I can look past a lot of these problems because the scenes are so god damn beautiful. Alas, this is the Weight GAMING forum so this aspect is going to be judged just as evenly as the rest of the content, nor am I a judge in this contest so my opinion holds little to no weight anyway.
In the case of this game, I disagree with the saying “don’t put all your eggs in one basket”. I think you put all your eggs in the right basket. Good job on your hard work, and good luck with the gain jam results. Can’t wait to see what you have in store for FC 0.8! 
But it should at least be more interesting.