I have now finished my Fair Isle cardigan - but I'm not completely happy with it.
Also, I'm not too happy with the button bands - they are too stretchy which means they tend to gape.
So - a lesson learned - I will take more time to check the fit and styling, and do more swatches etc etc.
I'm going to reknit the sleeves, work on the button bands - and then hopefully it will be how I wanted it. When I'm happy with it, I'll share the pattern with you.