Shawl number two of my Cassie Castillo assembly line.
Beautiful design, yarn and beads.

Recommendation:
Work purl row of the Blackberry Lace very loosely. Doing that makes the k3tog of the RS rows much easier.

Teensy errata:
RS rows: at center of Blackberry Lace, one needs to work: yo, m, k1, m, yo.

Shawl shape shift:
Elected to make a crescent shaped shawl, with no center line. Increased two stitches, each side, every RS row. Increased one stitch, each side, every WS row. Added a selvedge stitch, each side and slipped the first stitch every row.

Beads:
Placed a bead:
on the last st, each row.
on the yo on each side, when working WS.
above every k3tog, as it appeared when working WS. Used ~ 40 g beads, ~ 1,520 beads.

The designer worked hard choosing the lower border, however, elected a different finish:
one row (k2tog, yo) across,
then one row p across, beading each yo,
finishing with four rows garter stitch before a stretchy bindoff. The lower edge looks coordinates with the other edges.

Beaded every bindoff stitch.