These are my two 18in dolls in their new ribbed sweaters. Its a nice easy pattern, the back and front is made in one piece, with the sleeves picked up at the shoulders and a button fastening at the back for ease of fit. Its a bit fiddly with all the colour ends so leave a longish strand when changing colour for sewing the sleeve and side seams

Actual measurements Chest 14”/36cm, length from shoulder to hem 7”/18cm, sleeve seam 3”/8cm
You will need: 20g dk colour A, 10g for each colour B & C, 4mm straight needles, 1 small button