First up, the Imperial Guard officer:
I wanted to see what a green sword would look like, and a many of the "sabre" like swords i've seen done well have a sort of secondary glow around the curved areas, which is what i'm going for here. It's a little inelegant, and works better if you squint, but i think it gets the shape and general effect.
After that, I went back to Captain Firey-Sword and, inspired by some work over at Smurfs in Space, redid him.
This turned out a little better, i think, and certainly more elegant than the previous effort. I've tried to maintain a bit of fluidity to the effect by "feathering" the colours along the leading and trailing edges of the blade.
Overall i think i may be getting past my fear of Power Sword effects, don't you think?