Borya, as you and I really want the professors of mathematics to discuss at the photo center)))))) ...

Incredible construction ... metal, of course, can be bent ... but here, it just ... rushes in the wind ...

minor nitpicking: always hurts the eye when the line rests right at the exact corner

If we differentiate, it will certainly not be so beautiful. But it is more practical and less expensive in construction. : shuffle  : photo: super 

And I would have a couple more angles ... for fun ...: wink 

"Heres a squiggle" -B. Yeltsin. Great photo, liked it!

great

Good vehicle