Brooch-butterfly embroidered with beads.
Brooch of the beads and felt - Fair Masters - handmade, handmade
I think I would try beading the design on before cutting it out. I could still cut the individual curved designs between each section of the shell as shown and stitch them on then continue beading.
Crafts with their hands - beautiful brooch of beads and beads
Pandahall provides craft ideas for making handmade jewelries. You can get the amazing craft idea when you buy the materials