By Simkin
That is really cool, not only the beauty of your art, but also all the engineering behind that spectacular work! Bravo!
Thanks a lot ! Mostly researches and time spend to think about it .

By Rdanhenry
Really very impressive and the more so with covering anatomy and architecture in the same series.
I did notice one little problem on the first page, where "measuring" is missing the "a" in the description of the Vertical Wind Tunnel.
Thank you very much ! Ah, well spotted, I'll correct this .

By Arimel
Really fantastic drawings as normal. The superb details are just astounding and, as Simkin says, the engineering behind it all is even more amazing.
Thank you, Arimel !