MarionsQuilts! .... Awesome!
Addictive, aren't they?
I love what you have going on here. Just play with the hexies and gradually move the ones that seem "off" to you, until you find what pleases your eye. For example, right now, for your centre of the spirals, I would replace that black one in the centre with an aqua, so that the two sides spiral out in the same way. Does that make sense? But that is my eye ... and yours may want to punch mine out!!!
For the sides/top/bottom, consider what your plan is ... are you lopping off the extra 1/2's of the hexies to straighten the edges? If so, you may want to fill in the edges with 1/2s, so that you have a complete hexie plus the 1/2 outer row, and maybe this is already what is in your plans?
Here's a tip from when I took the class for this ... it looks to me that you have the 1/2s places side-by-siide, but are loose. They had us pin them together, so we could easily pick up a pair, and not worry about losing the other 1/2 as we moved it around to create the final setting.
Love it!! ............ anxious to see the finale!