Root mean square (top) and root mean squared error (bottom) of the reconstructed fields as a function of distance. Top-left panel: root mean square of the reconstructed density contrast for the NN (blue) and WF (orange) in the validation mocks. The RMS is averaged over spherical shells of width 10 h⁻¹ Mpc. For reference, the RMS of the true field is marked by the horizontal dotted line. Top-right panel: same for the radial (solid) and tangential (dashed) peculiar velocity components. Bottom row: same for the root mean squared error.