I checked out her page and absolutely did not like the last block. It was too busy and not enough contrast. I learned from a video I'd seen Mary Fons had but 2 fabric pieces out great contrast until after the cuts. the prints were large and therefor she has conflict with void. That is the first thing I check now. In fact I open one piece of fabric all the way and play with it like laying smaller pieces around it. Looks like a huge block but at least I get a better idea. I can't imagine 24 fat quarters unless they are all similar patterns. I'm sure others will have better ideas/suggestions. Good luck and I don't blame you for wanting to do with what you have. Maybe make a block or 2 see what you come up with in variety. If all else fails make a sampler.