Steampunk Mechanical Iris, Blender [EEVEE]

This is my first submission to this site. 

This is a mechanical iris, also know as a aperture. These are used in for camera shutters, protecting star-gates, and making various cool looking containers and frames. This one is in a steampunk, semi low poly art style. It is optimized for the EEVEE render engine. I designed this to make a animated profile picture with my previous profile picture behind it, to be revealed when the iris opens. The example pic I used in the test render is intended to be replaced with whatever you wish.

The HDRI I used can be downloaded free here: 

https://hdrihaven.com/hdri/?c=indoor&h=carpentry_shop_02