Which is better? this or this?

Just went for my annual eye exam.  And you know that dreaded "which is clearer, this or this?" and basically you can't see a bit of difference?  Well, I'm giving you a choice but there more than two options.  I've been continuing to make more hexagons, basically six at a time but trying to stick to a color for each set of six.  So far I've done four arrangements on my design wall.  The circular one is my latest attempt.  I like the way the colors flow from lightest in the center to darker on the outside.  But I think I'm losing the hexagon effect.  Maybe that's not so important but I would like to showcase the idea that they are hexagons.  Would I be better off to separate them with little setting triangles?  Take a look at the post from a few days ago and compare the photos with this one.  I'm giving you something to think about today and hopefully by tomorrow I will have separated them with fabric  between each hexagon.  That's the plan anyway.  By tomorrow you'll be able to consider, which is clearer, number 3 or number 4?