Eventually I found a beautiful B-Line stamp that looked as if it had never seen ink (and bearing in mind I bought it from Lin Brown when she had her shop and regularly attended shows in her own right, that is disgraceful!) Anyhow the stamp is called French Plumes; and the penny dropped.
Painted the square tag with a good layer of Chalk Fresco paint,
scribbled a pink and a couple of blue Fibralo markers on my craft mat and using water, picked up a very little amount of colour to delicately colour the feathers.
Stamped the Paperartsy mini MN98 feather, using Ice Blue Fresco, lightly in the four corners, and then two very feathery feathers from my stash