Gary, Eric,
Thank you very much Guys. I appreciated your messages a lot.
To take these landscapes, it was a Great pleasure.
I did not use polarizing filter for all my images, just natural light. I especially used my Sigma Serie PRO 17mm/35mm aspherical lens to have a wide field of view and to have an important depth on the landscapes.
Warmest Regards,
Florent
Gary : thank you for your 2 e-mails.