Vertically thick inner ring and thin outer disk in HD 163296, LkCa 15, and V1094Sco. The shaded colors on the major axis cuts indicate the location of the azimuthal profiles (orange) and rings of interest (yellow and green). “Flat” models are too thin vertically to show sufficient azimuthal variation compared to the data (third panels), while “Thick” models are too vertically extended to reproduce the outer disk/ring brightness in all three disks (right panels). The beam size and a 25 au scale are indicated in the bottom left corner of the first panels.