Fitting the lens galaxy light profile from a much larger cutout than that used for lens modelling. Left: large cutout around the deflector galaxy in the F814W band, with the lensed arcs and quasar images subtracted using the best-fit of a power-law lens model. The galaxy extends much further beyond the Einstein radius with θ_eff/θ_E ≈ 1.7. Middle: model for the surface brightness profile of the deflector constructed using elliptical isophotes. Right: model residual showing that the model has captured the overall light distribution despite numerous overlapping objects. The model from middle panel was further approximated with an elliptical multi-Gaussian expansion (MGE; Cappellari 2002) to allow deprojection along the LOS for kinematic modelling.