The artwork and programming were amazing and well-suited the situation. Although there are some effect that I would like it to be shorter since it made the scene kinda been drag out.
I just wish the storytelling was given more depth, such as more background on Fuyu (my guess is that he is written based on Yuki-onna forklore, you can let Haru been warned about it, but ended up didn't suspect anything since this Yuki-onna is a male and not a female, this is only my suggestion since it is kinda weird when he did not know anything regarding himself at the end either lol), more choices and dialogue branches, and it would be more fun if he was a little evil haha (leave her to dead if she left, ask something exchange for the flower), but consider it was only made for the VN Jam, it can't be help.
After all, I enjoy playing this, it has potential. If your team ever considers to make it to a full version, I shall looking forward to it and give you all support I can. :)