Small is not petite friendly. My normal size is XS, 0/1 (4’10”). The armholes were too large; I would shorten the length to the top of the shoulder by ~5 cm and thin out the shoulder “straps.” I also only crocheted one round of SC stitches along the neck and ran out of yarn to crochet around the armholes. The project used exactly two balls of Lion Brand Coboo.

Notes from following the original pattern
Front panel:
70 rows to reach 15 cm
From armhole bind off, 33 rows to 25 cm
From neck edge bind off, 15 rows to 30 cm
Back panel:
From armhole bind off, 55 rows to 30 cm