Took the pattern as a guideline but didn’t like the idea to use the big merino as 400 to 500 g for a childrens pullover seems to much for me. Sport is offering plenty of warmth too. Made the sleeves much shorter and used a well fitting shirt as basis. Instead of ribbing I used garter stitch for the collar and sleeve finishings.

Finished measurements:

66 cm around body, 44 cm from top to botton, sleeves are 33 cm long, and have a circumference of 32 resp 20 cm, so it should fit a 3 to 4 year old.

Gauge: 23 M x 34 R, 3 cm bamboo needles