@Johnny 5:
The drawing contains absolutely no element of the mentionned rendering and I can prove this.
Here is the diagram of JBCousin with no illumination as drawn at large scale:
As you can see, nothing in that image comes from an official rendering. We can see well how every specific elements have been drawn "by hand". The horizontal limits between floors, the diagonal lines of the cladding, the colours, the thin spires at the top, the way the "skirt" is lifted up to make appear the structure. Absolutely everything.
Finally, here's the exact same drawing, after illuminations have been added in order to add more a sense of perspective to the drawing:
You can see well that it's the exact same drawing on which the only thing which have been changed are lights.
Now, if you're still not convinced, I will make a direct comparison between both. On the left, you can see the first drawing from JBCousin which was indeed a copy/paste of the official rendering at the notable exception of the basis. On the right, you can see the second drawing from JBCousin, which is 100% drawn.
You see well that there is absolutely no element which are in common between both. I know all this for the simple reason that JBCousin asked me some tips for his drawing. As such, he has shown me various versions of the drawing on which I've given my personal advice.
I fully admit that his drawing is inspired by the rendering, but I fail to see how it couldn't be the case knowing the building doesn't exist yet. If his diagram can't be accepted, than I guess many of the diagrams I've personally made about Paris proposals should be rejected either. Actually, I even guess that this would be true for nearly all diagrams of proposals which are available on SSP.