WST summary statistics of the simulated tidal features (dashed lines) compared to results of optical cirrus shown in Fig. 12. From small to large coherence scales, s₂₂ of tidal features consistently decreases, while s₂₁ shows opposite trends. Note that the range of the y-axis of s₂₁ here is larger than that in Fig. 12. The results here quantify the differences in the morphology of optical Galactic cirrus and tidal features, which lead to their differentiation shown in Figs. 17 and 18.