I like the light in this - nicely done.
It depends how much detail you want and/or how loose you want it to stay
I like the way the water and reflections are painted - and yes, the foreground grass needs a bit of attention - taller grasses rather than the short strokes? I think maybe you could get a little more definition into the reeds at the back too, without losing the looseness.
Little nit-pick .. the beak is stopping on the reed line - perhaps the beak could be a tad longer.
Nice work though