What color green is that? I thought the green was the same as the ROTJ armor. If your going to use spray paint Rust-oleum Hunt Club Green is a good color for that. ( I can be wrong about the repaint armor being the same color as ROTJ. I’m sure others can confirm. )
Also, the silver looks like chrome. Personally, I would do the silver after the texture. You only need to paint it silver in the small areas that it will show and then use some liquid masking on the area you want the silver to show. Any other underlying colors should be painted in a similar fashion before the final green paint. The layered effect better IMO, albeit more labor intensive. The result is the payoff.