Thank you!
I felt this kind of music was fitting good with the puzzle genre, to have a slow paced mood.
I totally agree with the color! I noticed the issue but hasn't found the correct setting to avoid this issue yet. (I am also a little colorblind xD So it may be worse than I saw from my point of view 😆)
I personally enjoyed to create stuff with physic, I think there is more to do, it's like I only explored the top of the iceberg.
Maybe exploring shapes. while playing i had to rotate one of the boxes side ways to move it through the door. and the complexity of the game can get more complicated if you included a map and didn't allow blocks of different colors to enter the same room. But you could also explore shapes instead of colors for the doors.
Here is another game i think it doing something similar. not to discourage you but to hopefully inspire some new ideas.
