Thank you good mates, and especially Paul.
I like very much your dancing vignette because it just shows how nice the time of May could be (sunshine, flowering season and the joy). You put it in a very emotional way.
Mai 68 appeals to me a very interesting history, and I came up with the idea of doing a 1/72 vignette after having seen Bertolluci's film "the Dreamers", though at first the idea was much more violent than it turns out now. The composition now is inspired by this photo showing the famous photographer Cartier Bresson looking at a slogan during Mai68.
But I changed the slogan with another one "under the pavement, the sand beach".
At last, thank you again for your votes and appreciations.
BTW, since years I'm having the first birthday during which I don't need to prepare for exams! Oooui!