Pros and cons are down below) Check out my vid (the game is the second there):
Advantages:
1. Very interesting concept. I like horror visual novels. I think this concept has lots of potential to becoming a very scary experience!
2. Art style is cool! I like how you made the background and the doll itself. The dress feels very russian, so great job on that!
Disadvantages:
1. The game could be scarier. If it positions like a horror experience than it would be nice to add some scary noises right in your ear or stuff like that.
2. I would like to see other dolls painted. I think that was lacking due to little time you had for a game jam but still.
Overall:
I enjoyed it but I would like to see the game to be much scarier. Maybe I just didn't see the scary part due to good choices, though) I would recommend adding animation for the scares like in the visual novel "Grotesque beauty". The animation does not have to be complex or frequent, it is just nice to have in a visual novel because it is always unpredictable.
Hope my feedback was useful!