You can easily not have any batting but any quilting you do will have absolutely no definition. By the literal definition of a quilt, which is 3 layers held together by stitching, it really isn't a quilt at this point but it can function as a pretty coverlet. But I digress... due to none of the quilting showing, and I know this because one of my early quilts the batting I chose was utter garbage and disintegrated before I could complete it and the areas where there is no batting none of my beautiful quilting shows. So because there would be no batting to give it definition and texture, I wouldn't bother with any detailed quilting. I only mention this because your avatar quilt looks quite detailed in the quilting.