It all depends on the batting you've used. Check the package. and it will tell you how far apart the minimum quilting lines should be. remember, that this dimension is in ALL directions, n-s & e-w. Just looking at it looks like there is no quilting at all the length of the quilt. Don't know of any batting that will allow this distance. Also, since this quilt will probably be laundered a lot, you would want to err on the side of more quilting, rather than less. If you haven't already done so, SITD between the white and print, then just sew some straight lines extending the block seams to the edge of the quilt, adding a mid-line if your batting needs it.