Last night I couldn't get to sleep so I got up, made myself a cup of tea and worked on this painting that I had started a couple of years ago (see post on 12 July 2017).

Next, I in a few reflections into the water.
With a lighter mixture of the same colours I put in the cracks and shadows on the rocks and indicated a few grasses at their base.
If you would like more information about ACEO please go to my post on 11 March 2010.
The ACEO shown here is an original watercolour painting using Artist quality Winsor & Newton paint on 140lb. Arches 100% rag, acid free watercolour paper. It is priced at $20.00 and sold unframed.