I suggest to modify
Fig. 4: administrative map is useless in this framework, I suggest to eliminate and to put in the figure only study area and legend.
Fig. 5 and Fig. 6: I suggest to put an achronim in the very long legends of diagrams instead of reply what is already in captures (i.e. Rate of groundwater level change in the unconfined aquifer; Change in land subsidence rate between 2010-2014 and 2015-2017)
Fig. 6: if all the toponyms reported in figure are not quoted in the text, as it seems, I suggest to eliminate or reduce them, because they have only a local importance.