I haven't made one yet (I DO have the fabric for it!) but from what I understand, it's not yardage that is important, but repeats. From the looks of your fabric, it has about an 18" repeat, and for 6 repeats, you'd need 3 yards...soooo You have enough, and then some! You'll have extra to use the original fabric in your quilt! :)
I think it will make some very interesting blocks!