Beautiful blocks! I like #2:)

I like the 2nd one with all the hearts in the same direction.

I like #2 the best.

Definitely the same direction much sweeter

2nd. version gets my vote. The darks and lights work better in contrast with each other. The 1st one confuses me, a personal point of view of course.

I might try a narrow sashing between blocks with a cornerstone at each intersection with lay out #2.

2nd best like the rest said

The second pattern.

I like them all in one direction best.

Here is another thought, just trying to help. Not sure it would look good or not. You could try to arrange the blocks like this: First row starting at first block, ect heart point down, then 2nd block heart point to the left then 3rd block heart point down then 4th block heart block to left. Then on 2nd row start with heart point to the right, then heart point up, then heart point to right, then point up.
will try to post you a sample picture here. Hope it works.

Now I am not sure that I like that after looking at it. Love your blocks.
Good luck,
Cathy