Why beginners (like me) should do the ST's first...
The probes are easy. It's like painting a wall. You can't really mess them up. The lesson to learn with them is how washes work really I think, and perhaps experience with metallics. It was a painless way to try drybrushing for the first time too.
The Storm Troopers though... You're going to learn a ton about paint thickness, preserving details on the miniature, what you need to paint yourself vs what a wash can pick out on smaller details... The most important thing you get from 9 straight stormies is precision though. Everyone I've talked to about starting this process says their hands aren't steady enough. Most of them are flat wrong about this I suspect, but the kind of precision needed to do this well takes practice. That's what you get with the storm troopers.
The RG's are going to teach you a lot about highlighting and use of color. They are pretty simple too. I think you're going to want decent precision before trying to paint their pole arms though (or around them with the red).







