I thought about colours again. How do they affect objects? How important is colour for a mood?

At the beginning I mixed lots of colours. After a while it was too much and I started to sort out. I started with 2d colour arrangements but than I understood that the combination of colour is very different in a 3dimensional way. With a third level there is more space for different compositions. It is getting more complex.

I made a short move about the different compositions with the 3d colour blocks: