The first decision was whether to work to the specified 60cm or 90cm square. I really prefer to work on a larger scale but acrylics don't like being folded so 60cm it was.
My inspiration are the groynes photographed at Bexhill (but probably 'breakwater' sounds more polite!)
In 2005 I made this Journal quilt of the groynes at Southend - fabric doubled over with bondaweb between then sections and slits cut out and the whole stucture inserted in a slit in fabric to give 3d effect
I'd used the same technique in this 6" x 12 " journal quilt, inserting folded Japanese kasuri into a slit made in piece of old Durham Quilt , a lot of machine stitching ( including from the back with thicker thread in the bobbin ). I went too far in painting with acrylics (that's the problem on a small scale, it's actually easier to hold back when working larger)