They are both pretty, but I think I like the black sashing better.

Love the scrappy blocks.

your blocks are great!!!

I like the black bias idea too!

With the bias it adds distinction to each block.

I like it with the black, love the blocks!

What great blocks.. I vote for the sashing...but maybe a little bit wider than shown in your picture.

I prefer the one with the black.

Definitely with the black - looks great.

I like it with the black sashing and think a bit wider would look good.