Today’s colour scheme can be used in a variety of ways—it looks terrific in delicate floral quilts. As some of the colours are quite striking, using the more of the light grey/white may be the right way to go. I usually say to use a number of values of each colour in the quilt, but this one may benefit from using the colours as is.
The plum colour builds a lovely bridge between the blues and the reds. You could also use a little electric blue instead of the grey-blue for more of a dramatic effect. Add some black to the scheme if you feel it needs it.
Once again, an golden orange has been included that I would only use a little of and probably mainly the darker parts of it. I think the smallest part of orange that almost borders on yellow would make the quilt shine, rather than using the yellow itself. It all depends on the quilt of course!