Food for thought... I think I would choose to tryout compromising the opinons you've received here and consider grouping the colored blocks into groups of 24 patches between choosen color of solid sashing. Also it might help you to think about how you are going to top-quilt it before you decide on the patchwork layout. I think top quilting shows better on solids and might nicely frame your favored grouping of patterned patches and perhaps rid your "it's not right" feeling. Hmm, varigated top-stitching thread on the white sashing might go well with the Hawain themed fabric.