I like B, you lose the detail in the blue fabric in the other blocks. thin dark brown border, then brown foral border, then blue border, just a thought
I like Block B and D the best, I think these are the ones you are liking too. I would go with your own instinct since you are the one who will be using it.
All the blocks are pretty . I perfer the block showing the pattern on the blue fabric.To me that strip is stunning and really `pops`. Thats my humble opinion.Cant wait to see which you choose .
Blocks A and D allow the vines to look more organic, natural.
This block design appears to be a disappearing nine patch and is very interesting in this fabric.