That is the Baby It's Cold Outside
(BICO) pattern, done in Lion Brand Homespun colorway Tudor with Gothic trim (the trim looks black in the pic, but it's purple). In the skein the Tudor just looks like a cream with some other colors mixed in, but I love the subtle striping it produced. This is a 6 mo sweater, and it used virtually a full skein of the Tudor, and a good chunk of the skein of Gothic.
I think I'm going to try knitting up a child's sweater in the Tudor, using the same pattern (it's a super easy pattern, made in one piece with 2 seams), but knitting it instead of crocheting... I have 1 1/2 skeins of the Tudor left to play with.