Hang in there, like all the otheres said, it will all come together. I bought a piece of fabric on sale, not sure if I could do this project, but the toughest part was the stacking of 6 layers. Got through that, and loved putting the hexs together.
Then when I started hanging them on the wall, I realized that mine weren't as distinctive as yours are, so I have to arrange mine in an offset pattern with a solid dark color between them. And it has made the blocks pop.
When you get all your blocks done, and start laying them into the differnts color combos, you will be amazed at the beauty of it all.
I am trolling the fabric shops looking for just the right fabric. Could you post a picture of your original fabric, please? It would help me know more of what to look for. Keep on sewing, it will come out wonderful in the end.