when auditioning fabrics, lay it under a corner, usually top right, showing the amt you intend to use.standing at the lower left, step back, turn away, look back at corner. One's eye natural goes to the large area, if this isn't helping you--- then take 2 pcs white paper,add to corner where fabric ends,this sometimes draws you back"to the finished" corner. I would use darker also, but I add a small sashing between the blocks, of the the same to pull it all together.