Yeppers, Russia Armor Green can be a bright color... I was asking more in respect to livening up the monotone green to add depth as opposed to a weathering approach. It's fairly easy in theory- darker green for the shadow areas and a lighter green on the top surfaces. It's something that I myself am slowly trying to incorporate in my paint jobs.
Learning curve? I wasn't even building aircraft until last year (after a 20+ year hiatus)... it is all patience and a willingness to try a new thing or two. This MiG represents the most scratchbuilding that I've ever put into a kit, and compared to bsyamato's work I should pull up a chair to learn.
Keep plugging away and asking questions, that's what we're here for after all.