Oh dear Mathieu, this falls a long way below your usual standard and I'm struggling to understand it. It seems to be almost a whole negative scan judging by the film holder intruding into the frame and there has been a light leak on the end of the negative. The reflections are almost lost in an overall grey whilst the river bank looks like my hair on a bad day. Sorry Mathiew but it's not for me I'm afraid but I'm often told I have no vision.
I kind of see the whole tree reflection thing and the 'roots' above them, but otherwise I tend to agree with Keith. The tonal range and contrast are not lending themselves to the subject matter here for me. Sorry!
If I remember well, I think I was scannig with my DSLR at the time...maybe it explains the poor contrats and the light leake. I plan to go back to the lab soon with thi picture to see what I can take from it !