after i piece these .. should i border the blocks in black?
what would you suggest?

I like the black bordering... it makes the blocks just pop! and i love your colors! just fabulous and either way you decide shall be wonderful. Well done and i cant wait to see the finished product!

I like the black very much

love the black, the top right one could disappear though

love the fabric could you alternate red and black so n on of your blocks disappear?

funny ,, that is the only one that has no yellow in it...lol
i have to see what to do with that one...

Yes, I agree with black sashing.

I would do that one the same. I think it would look neat. :) Great job and love the fabric. :)

Black would look great.

I like it!