I thought the visuals were very cool (and impressive, to be made with no tileset) and there was so much character put into everything. The first room made it seem like it was gonna be a standard point-and-click adventure game, so the monster room confused me at first. Making the second glass crunch trigger the monster was a good decision, but it took a few tries to realize what was going on. Maybe add an audio queue on the first crunch, like the monster growling so the player associates the monster with the glass. After that, the greenroom puzzle was a little hard to get but not frustrating! I think the only thing it needed was sound queues. In the last room, I only noticed the paper in the corner AFTER trial-and-erroring the sequence. It could have been a me issue tho, i am pretty blind.
Overall this was a neat premise and a good execution. I had fun with this one!