A couple of years ago I took the online class "sumptuous surfaces" with Sharon Bogon.
This is the piece I made at that time. However I never finished it off.
When I was working on the first pebble this piece came into my mind and I thought it would be perfect for a second pebble. I only had to change the order of work.
Starting with an finished piece of embroidery and decide where the relief will be.
I backed the embroidered piece with muslin because the fabric is not very dense as you can see on the picture.
This is the bottom fabric, a piece of an old sheet. I drew the two hearts on it. This helps me to place the trapped items.
Here are the items that will be trapped between top and bottom fabric.
The top of the hearts will be raised just a little with batting, so will the lower part.
On the right are small, medium and large bamboo sticks, to represent waves.
On the left from top to bottom: a few layers of felt to shape the shell, a plastic bead, a few plastic buttons and three plastic balls attached to each other.