I think I found a way to make raised bead embroidery easier and more consistent using pieces of craft foam. The foam can be cut using paper punches or scissors, then layered to add as much height to your bead embroidery as you wish.
by Suma Embroidery
by Aham Designer Boutique
by Keya's Craze
by Shagufta Fyms
by Leisha's Galaxy
by Beadaholique
by Rose World