I went for age 3 but with age 2 measurements. I used the 2 smaller circular size needles for the sleeves.

Pattern errors

Lace hem row 4 the * is in the wrong place for the repeat. Repeat should be p1, k1, p7, k1.

Lace hem row 6 omits the star. Repeat should be (p1, k1) x2, p3, k1, p1, k1

Notes say all slip stitches are knitwise unless stated but German short rows slip stitches should have been marked purlwise.

Buttonholes

There is a general lack of instruction for the buttonholes to make sure they fall correctly at the end of the project. After a button hole on row 12, work 5 more rows and then start the lace rows. Buttonholes will fall on row 7 of lace section and row 3 of the lace hem, leaving 4 rows before binding off.