I'm giving an update on my progress, as I finished both legs before Golden Week. (The Leo has fewer parts, so I finished it quickly.)
As before, I added panel lines in various places and painted them with acrylic paint pens.
The green parts are painted with Forest Green.
I added some weathering with Gundam Marker Real Touch Marker Gray 1.
I used leftover decals to give it a more realistic look.

Progress on my Leo (3rd update), not my Zaku. | こうパン's Gunpla works