Hello,
Apologies I have only found this forum and your version of my Lego Ideas project.You have managed to reverse engineer it perfectly. You also inspired me to build my own. There are photos and full building instructions at Architecture Arc De Triomphe
The cost of the trophy figures meant I restricted the build to use just 4. I couldn't afford to build the larger Arc de Triomphe I've posted on Lego Ideas - over 120 figures.
Great to see it made up.
Regards