With crochet thread size 150 and needles size 1/0 an approx. size of 38 x 61 cm.
With art-silk and needles size 2½, an approx. size of 114 x 180 cm.
(Old German needle sizes)
Chart C Row 141: last stitch before the “mirror” should be a make-2-from-one instead of a K1.
Chart D Row 51: missing tbl after at first petal.
Chart E Row 1: After the stitches are picked up and the round is closed the number of stitches in the round is 604. The description tells about 602. The two decreases could be made in the first purl round.