Yeah! Very good usage of generic figures, I have done a couple statues for 6mm including an old IWM Panther sculpt and a Reaper Chronoscope figure. For the bronze, I was pretty happy with taking a bluish-green and really watering it down to wash consistency before painting one coat all over and then a second coat focused on recesses and undersides. If you image how water would collect, pool, and flow over your 'statue,' that will inform where you'd want to put the most effort. I also had value in using a brownish-green wash for the base to hint at mossy grime.
Oh, also some white spatter on the head/shoulders/upper surfaces. Birds be poopin' everywhere they can perch, and that was one thing that stuck out to me looking at example pics of statues.