Mods

body (3.5mm needle)

.Because of my slightly looser gauge,
I omitted the 2 last repeats of sleeves increases but I should have made 1 more because my sleeves end too tight
.I picked up 2 less sts for the fronts and also CO half the amount of sts required in between
.I altered the stitch pattern for a change: 1 YO at each round

dress

from the armhole, I knitted straight for 108 rounds (33cm)
then increased 4 sts (1st at each end and at each side) every 6 rounds 10 times
then straight until the end

sleeves (3mm needle)

.I picked up 11 sts instead of 6
.5 rounds garter st, decreasing 2 sts at every round with centered double decrease (CDD) on the 5th picked up st
.BO

hem & neckline (3mm needle)

6 rounds garter st

stripes

4 rounds white
2 rounds navy

until running out of white, then
4 rounds pale blue
2 rounds navy

until running out of pale blue, then plain navy til the end