Hello, you didn't upload their logo, but i suppose CSTB stands for Centre scientifique et technique du bâtiment (http://www.cstb.fr). Please check my Design #5493235 if i got it right.
Also, since we're talking about large prints, would be nice to have you logo in any vector format.
Thanks,

Hello,

Yes you are correct, the CSTB logo you got is the right one.

Waiting for the other submissions but your design looks good.

I would just see CSTB much smaller in a corner, more discreet; Also "Plage piscines" is together (means pool deck). I'll put the vector online. Thank you