Thx for you comment ! I wanted to have the lakes water blurry and to have everything in focus, that's why I used a so small aperture. Maybe F/8 would have been enough. I think a graduated neutral density filters would have helped here, maybe I'll considere purchasing one bud that'll be after a polarizer.
The 1€ (or 1$ ;p) question is it is working in your opinion ? Is it evoking emotion ?