Absolute relative difference between the absolute magnification factors obtained from the current model and the B21 lens model as a function of the magnification values from this work. The data points represent the different observed multiple images included in both models. The data points are color-coded according to the redshift of the background sources. The absolute magnification value, μ, corresponds to the median absolute magnification computed considering 100 different realizations randomly extracted from the final MCMC chains. The errors in the magnification values are computed from the 16th and 84th percentiles. The distributions of the absolute image magnifications obtained from the current model and their absolute relative differences with the values obtained by B21 are shown in the top and right histograms, respectively. The red histogram in the top panel shows the absolute magnification distribution of the newly identified images (i.e., not used by B21).