DIY010 headphone

This was an attempt to create a DIY version of the Sony Q010-MDR1 (Qualia 010).
My design is quite janky, I don't really recommend making this.

Please note aswell that due to the huge cups and low profile headband with lengthy Beyerdynamic metal bow this headphone is unfortunately not suitable for small heads. I need about 8 notches on the HD 650, with the DIY010 I use the smallest setting.

About the inspiration:
The Qualia released in 2004 for 250000 yen as part of Sony's high-end Qualia brand.
It used a unique construction with the highlights being the 50mm composite driver, the lightweight magnesium/carbon fiber frame and a fully open acoustic design that utilizes a hollow earpad (suspended leather) with a self supporting porous baffle framed by the bridge-like earcup.

With this I tried to recreate it using the popular and easy to source HPD-50N25PR00-32 from Peerless/Tymphany.
The baffle is no longer self supporting, instead using a filtermaterial glued to a stiff for