Hi!
Its been a while since I played a point and click game, so consider me rusty.
I got the hammer, but wasn't able to progress afterwards. I would have thought I need to hit the marble statue with it, but it wouldn't let me.
Also grabbing the key from the linnen closet was not possible, but possible that it will be later.
I also didn't get the puzzle in the study room. I also accidentally bugged it I think. When you put the photos exactly on top of each other, they stick together.
Some music would have been great, this way it felt a bit empty.
But overall I enjoyed my time. If you want, post the solution as an answer to this or in the description of your page and I will take a look again.