Selection of the best-quality survey data and the modelling of these data. First row: Legacy Survey, Pan-STARRS (italicised), or HSC (bold) data. Second row: Models with 2 PSFs and an additional Sérsic profile when it significantly improves the modelling. Third row: Residuals after subtraction of the models. Fourth row: When the model has a Sérsic profile, residuals after subtraction of the PSFs alone. The bands are arranged by wavelength (redder first) and Lupton-stretched, highlighting the redder hue of the lensing galaxies seen in the fourth row compared to the quasar pairs.