i look at the PDF
it has many mice details
but still does not show how to make the frames for the front and AFT
does not show the frame’s size and shape
there was supposedly some math to do that but very difficult to find what the math model was
I think that if you would go deeper then you would find good references but…I gave up and decided to make it not 100% accurate. I’m also sure that I made many mistakes when making it but well- it look quite believable so I have no problem with it at all
Here is the “Behind the Scenes” article of this brilliant artwork!
Do check this article written by the artist himself. It describes the process of making the artwork step by step with an insight on the inspiration that led to its making.