Monopole (left panels) and quadrupole (right panels) moments of the void-halo cross correlation function, averaged over the 20 reconstructions in the validation set. Curves in different colors correspond to the various reconstruction methods, as indicated in the figure. The top panels show the measured multipoles, while the bottom panels display their residuals with respect to the reference case. Grey shaded bands indicate the 1σ and 2σ uncertainty regions, estimated from the scatter among the 20 realizations.