Surface-brightness fluctuation models of the three dwarf candidates and DwA (used as a consistency check). The first column displays the CFHTLS or HSCLA i-band cutouts of the galaxies. The second column shows the best-fit Sérsic models. The model-subtracted residuals used for SBF are shown in the third column, with a color bar in units σ. The last column displays the power spectra with the model P(k) as a dotted red line. The observed spectrum is the dotted blue line, and the noise level is shown in gray. The HSCLA Sérsic model of Sha DG-II is elongated as it overlaps with the coverage edge; this does not affect its SBF distance, which is in agreement with CFHTLS coverage. The CFHTLS model is used instead for n_Sérsic and ϵ.