I like the duck. I also enjoyed that you guys had the player input a name for the characters. Gives a little bit of room for immersion.
The parallax effect was a very good addition. Coupled with the camera effects, it elevates the visuals of the game. The visual effects of the mirror and the dust coming up as the character walks or stops and goes the other way are awesome touches too!
The stones and the last puzzle were my favorites, but the puzzles in general were well made and easy to understand. The cutscenes, character expressions and designs are also really good! Very nice touch on the vampire's eyes!
A veeeeery tiny suggestion is to maybe allow the hotbar to be scrolled through by the mouse wheel. Other than that, it's a very well put together game. I was really impressed and pleased with the dialogue boxes and their little details, and the dialogue itself reveals the start of an intriguing story. And the game itself looks really pretty.
This is a cool game. Good work!