The art style is great!
I also like its gameplay but it could have fit the theme better in some way because the game seems to be in control despite of the skeleton out of control. I suggest making it so that the skeleton keeps moving and we have to place tiles in real time and further moves are hidden but that would require making longer level and the time-restriction would have been an obstacle in the jam.. That way the situation would be more out of control and we would have to work actively to take it under control.
You can surely improve the game in post-jam version :)