Funky, Dave! I like the setting; the Lava's nicely done.
One suggestion for future images, though. I don't know what kind of costume wardrobe Poser lets you work with, but you might want to look into some boots if you're going to be in such hostile environments. Frostbite on Hoth is not fun. Though I suppose the whole mystic body control discipline thing of Fire-walking works here. Still, some cool efects could be had with cloaks & such.
Keep the Jedi Master's adventures coming!
As for the matter of Blue, Red & Green blades being unimaginative, they were the colors that consistently showed up best against the backgrounds, so that's why Lucas chose them. It's purely a matter of the technology at ILM's disposal, not that of the Jedi. Still, I like the "Darksaber" my brother designed for a Sith Lord in his Tales of the Jedi campaign, which was purple-black with lots of "Kirby Krackle".