Not being very long in the hobby of quilting, you could maybe put the blocks together with sashing and background that work without stress, and then maybe applique the blocks that are giving you a hard time with the math? I did this with a penguin quilt that didn't quite turn out how my graph paper and I imagined, so I just appliqued the rogue blocks to the top, and they look so amazing! Like I had planned it that way (hahahaha!). I think the fish you have lying on your tabletop are gorgeous, by the way. Just let them flow!