This is not a proper tutorial. This is a supplement to THIS DIY.
After gluing the layers by way of the center bracing, you will want to secure said layers using twisty wires. This step is optional, sure, but I have found out that the extra support of the twisty wires helps.
Also, I should note that you can also use wood glue instead of hot glue. I have reinforced this chandelier with wood glue and I think it has become a lot more durable.