Color maps of the lensed region in the J0033 field, showing the four different regions (Arc, QSO, CI1, and CI2) tracing Mg II absorption. The top left (D-index), top right (Mg IIλ2796 rest-frame equivalent width), and bottom left (Fe IIλ2600/Mg IIλ2796 equivalent width ratio) panels show three different metrics used in the literature to identify if the detected Mg II absorption is a potential DLA. The color bars are designed such that spaxels that are green and yellow colors in these three panels would be considered as potential DLA absorption. The bottom right panel shows the S/N at the position of the Mg II 2796 Å absorption at each spaxel. In all four panels, the white-light image of the cube is shown for reference. Only spaxels with S/N ≥2.0 at the position of Mg II 2796 Å and EW₂₇₉₆ detected at ≥2σ significance are colored in all four panels.