Imaging preview of all the monitored objects. For each lens, we include a representative exposure from the dataset with median seeing and low sky background, the high-resolution fitted model (see Sect. 3.6), and, when available, an HST/Wide Field Camera 3 (WFC3) image for comparison. The high-resolution models live on a grid twice-supersampled compared to the original images, with a two-pixel FWHM PSF. The resolution (FWHM of the PSF) in the models is thereby 0$\stackrel{″}{.}$213 for VST data, and 0$\stackrel{″}{.}$237 for 2p2 data. This is to be compared with the 0$\stackrel{″}{.}$07 resolution of the HST/WFC3 images. Note also that the F814W filter is much wider and redder than the r band, such that more details can be revealed in the redshifted objects of our fields. All cutouts are oriented with north facing up and east facing left.