I've been experimenting again. My vision here was to create a piece of sand and sea using natural. The starfish are washed up on the shore, the water and life inches away.
I printed a starfish and a sand dollar on a lightweight kozo papers that I had randomly torn. Once it was dry, I added a layer of gesso to half of a piece of 200lb watercolour paper. I left the surface of the gesso fairly rough as I wanted the texture to show through. The gesso acted as the glue when I placed my printed kozo paper on top of it. I patted it in place and started adding colour to it.
Initial washes to confirm colours and follow torn paper line for water line
Following the torn line of the kozo paper, I used it as the tide line for the water and added washes of blues and turquoises, letting a little of the golds of the sand seep in. Above the tide line, when the wash as wet, I added some salt. This pushes pigment away from the crystals leaving lighter areas, almost like foam. Directly below the tide line, I added fine sand. Sand absorbs the paint but leaves a granular effect. It doesn't push pigment away like salt does but seems to diffuse the colour.
Salt added to wet wash above water line and sand added below for texture
The starfish had random colours of sea and sand added to them in varying strengths with some sand added here and there for texture. The sand dollars while there became too diffused in the process and aren't distinguishable as sand dollars. I'll pretend they are half buried in sand.
Texture of gesso showing through kozo paper when watercolour is added
Detail of starfish and background colour and texture using sand
I spattered the same colours over the sand with a little extending into the tide line. The piece is not completely dry in these images so will be a bit lighter and I'll likely add a touch of gouache to the tide line for highlights, then let it go.