Results on Sunflowers so far :
I like the double Sunflower.
I do not like having a big 'empty space' in the middle, the kind I get when I do a 'single Sunflower' in the 12" size.
I like it that there isn't too much green in the flowers.
What about making the outer triangle on the 6" sunflower and the inner triangle on the 12" sunflower of the same fabric ... and then aligning them ... and then doing away with the seam, by making my own 'middle diamond' template.
And frankly, even though there isn't quite enough contrast in there, I think this is very close to 'That Perfect Sunflower' ... at least in the double sunflower category. Never fear, though, I'm going to plod on and continue to experiment with this block for a while to come.