Join with sl st to top of ch 4 of original ch.
Ch 3, 4 tr, ch 3 picot, 4 tr in same space, dc, ch 1, sc in the space between tc clusters.
Let dry for 24 hours.
Ch 3, 4 tr, ch 3 picot, 4 tr in same space, dc, ch 1, sc in the space between tc clusters.
Round 5: Sl st to ch between tc clusters.
Join with sl st to top of ch 3 of original ch.