Very nice game, congrats! :)
I enjoyed the puzzles a lot; some of them stumped me for a while, but none were impossibly difficult. Good job with that!
I agree with some people here that it is not always clear where the shade will go, but once I figured it out it made sense. Sometimes the movement felt unresponsive, I think this happens when you press an input before the vampire finishes the last move. Adding some kind of Input queue would relly help to make it feel more responsive I think.
Overall good job with the game, I enjoyed it!