Thanks again to Lotek for his huge work and sharing.
The author remixed this model.
First, I completely reworked the diffuser. The solution proposed by Lotek was in resin, I wanted to find a printable solution, and I am really happy with the result. I also redesigned the case with a new design because it was a gift for the 18 years of one of my daughters and I wanted for this occasion personalized and brought my personal touch. I added a button to turn it off and a connector to connect the power. The clock can be placed on a piece of furniture or fixed to the wall.