The photographs do not do the bird justice. It actually was showing well and stood out by a mile. Main features seen (or to look out for if you intend going for it):
1) Big lobes at the top of the bill!
2) Stonking orange bill.
3) Sails - initially not clear but after the bird preened, these showed clearly.
4) The green on the neck was more extensive than the accompanying Eider and extended under the black cap.
5) Fine black line between bill and feathering.
Comments or feedback welcome.