The book and notepad could use a "close" button, or respond to Esc or clicking outside it or some other way of closing them beyond clicking the pentagram icon.
And maybe prevent people abusing the 'skip day' button because it makes gathering reagents trivial. I'm on day 700 right now within 15 minutes of playing it. Though so long as the current rewards are only 2 still images, the payoff might not be big enough to motivate people to keep playing if that loop-hole is closed.
Otherwise the game was solid. I found no new bugs others haven't found yet (like the second love-scene from the witch staying locked),
Keep at it! Lots of potential here! Looking forward to seeing more!