Thanks for the supportive comments, they have definitely made me feel less bad about withdrawing the quilt but it has obviously had an effect on me as I have stopped work on another quilt that I had been working on more or less simultaneously.
I love paring things down to their essentials, but worry that sometimes I go to far. That's OK if I stll like what I've done, like this computer sketch for the 12by groups next challenge 'Fragments' which gives me goosebumps at the moment:
The quilt that I was working on was similarly sparse but based on an idea of repetition and I took so much away that there was no visual interst left, but at least I could see it .... this time. So i think a few days away from the machine might be good for me!