Not sure if this is intentional or if there is a small bug with handling multiple items;
I noticed that the Stone Curse Cure only used 1 of the 3 flowers or unless there is going to be another use for those 2 extra flowers in the full release of Chapter 1.
Another likely bug that I found be for the sketchbook at Miss Knife's house, I assumed that the item requires all three jar of paint for the book to be unsealed, since it took all three paint during my first run. But what I found was that when only having just one or two jar of paint while the other jar is empty or carrying water, it still gives the sketchbook while still keeping the unused jars in the inventory (which I believe is unintentional).
I also have a suggestion about the painting chase, shouldn't stabbing/burning the painting prevent the chase scene or at least slow it down? I assumed that since there are 3 ways to get the eyeballs (two of them are just simple pickup locations), the one from the painting could be avoidable. But the player is forced to interact with the painting lady due to it preventing them from grabbing the item in the cage, which makes burning or stabing the painting pointless due to not getting anything.
Another subtle thing that would be nice to add would be the use of light before the forest scene, where you would have to use one of the three possible items to enter. What I found out during one of my recent runs is that if the player doesn't have a lit candle or firefly lantern in their inventory, it warns them about using the cellphone (which I don't see any drawback). Meanwhile, during my first playthrough of the game, I was confused about when would I be using the cellphone as a light source without knowing that it automatically used the candle that I had in my inventory.
Finally, I also have many other questions that I have wrote down in my note during my multiple playthrough so I can go through it while playing the full version, due to assuming that they are going to be used in the full release (or that I didn't find out the use/purpose for it in the demo).
Such as the #375 Ticket from the Train Station, the empty jar from the Sculptor's House, the "Fish?", etc.
Update:
After looking through the guide by Winger785, most of my questions has been answer, but still have a few others that would likely show up in the full Chapter 1 release.
Unless Chapter 2 is going to still follow Lacie as the playable character, I would like there to be more new accessible locations. The possible branching path that I could think about at the moment is the Train Station.