I decided to add vertical wavy free motion lines in a light grey tone to suggest the movement of the water. There is just a layer of felt behind the fish so this is technically, not a quilt. shhh...don't tell the quilt police!
Normally I would create horizontal wavy lines but these fish are down deep....
To create the shadow effect, I used a watersoluble wax pastel crayon called "Neocolor II". I love this crayon!
Not being able to leave the stitching to just the wavy water lines, I also accentuated the details of the water creatures with free motion stitching in variable coloured threads.
another detail shot, this fish is caught in a fisherman's net.