sorry if i posted this twice, didnt see it come up the first time only a quick go but more ideas to try. i added a new layer, drew the puddle then used layer -> layer style to add a smooth inner bevel. then used the smudge tool to smudge the edges. turned off that layer, added a layer above it then used to eye dropper tool to pick the colour of the shadow from the original layer then painted it on the new layer. im thinking there may be a way to paint the shadow on useing the history brush or clone tool (? anybody)but i cant think of it this late (or early)