I was never really satisfied about the bed of the small stream who is going to run into the "Klierf" (that's the name of the river, means Clervaux). Finally, after i had already painted to whole stuff i decided to redo it. Better do it now and not be unsatisfied forever with it. Here is it before
and here it is now, already painted again

I deepened it and filled the stream bed with big stones. I think it's really better now.