Hi Mario,
I found the video of your light on youtube. I'm currently building a similar light and really struggling with some of the transition effects. I'm using the same diodes - ws2811 and the fastspi2 led library. Planning on using an IKEA Fado table lamp for the actual light itself.
Would you consider sharing your source code? It doesn't have to be cleaned up - it would just speed up construction of my light so much.
Thanks.
Mike