I drew this patterns based on lizard skins color palette and texture with different ways and materials. Then I translate these paintings on the baked-white shells as the basic color covering.
Last time, I found that drawing on the fabric which was attached to the paint board, then get rid of the fabric after painting, it would leave a tactile texture which looks and touches like reptile skin. So I used this way to paint and made the texture on the jewellery.