Cut the wire in 2 (so 40 cm of wire for a first earring).
Thread a Magatama, a rocaille, a 4mm pearl, a rocaille, a Magatama.
Then cross the wires in a "rocaille + Magatama + rocaille" set.
"Crossing the wires" means that one wire passes through this set of 3 beads, then the other wire passes through the same beads but in the opposite direction, thus crossing the first wire.
Center the wire by sliding it over the beads, then tighten.