Thank you all for the feedback about my corners. I have decided on a similar petal shape. You can see it here with some linen I bought for my fancy fox quilt. For anyone wanting some nice linen for zipper pouches or fancy fox quilts I can recommend what I bought from Kelani Fabrics. It's 140cm wide and a lovely warm, natural colour. The service was excellent and fast too, Elissa was very helpful with my enquiry.
There has been some secret sewing happening as well. I'm very happy that I have finally made some good progress with my SSCS. Inspiration finally struck for the decoration this week, but obviously I can't show you that either!
The weather is very strange at the moment. Thirty five degrees yesterday and only 20 today. I think I should take the opportunity to do some hand quilting on my nieces quilt!