I'm pinning this for inspiration even though there isn't a pattern given for this. Link takes you to ravelry lorijo's fair isle cardigan. She used unknown sweater pattern, fair isle pattern from some mitts, and colors inspired by a painting.
The beautiful combination of rich autumn hues in this patterned yoke is the result of many experiments with different yarns, gauges, and colors. Michele Rose Orne designed a classic round-yoke pullover with updated styling.