@Mozart Many thanks for your comprehensive reply. I have been using the same techniques as you but was and still am struggling to return the mask perfectly to its ‘empty’ mask. When I spray the white the contrast on the edges reduces. I bought some cricut transfer tape and it’s much better than the one I was using and it’s made it easier. Hardest part is removing it from its paper backing! More practice needed and whilst the second one below isn’t in perfect registration I’m happy with it!