I have that center print in yellow. I love how it looks as I move.
Your light fabric is alittle dark for what you are using it for but not much. If you can center the floral motif on your darkest fabric for the center of the windows so the lighter color of the flower doesn't blend into the "frame", I think you are in good shape.
I would think that it is probably just that you have looked at it up close for a little to long. I'm sure after a rest you'll go back to loving it. The fabrics are great.