In Rem, that's sacrilege!
No seriously though I like the Plo Rebel guy... I like that you mixed up the paint on the skin especially. I do however think that changing up the costume a little would help it some is all... Of course I collect XD so the Japanese uniform stands out to me, but I think like adding unique "pouches" would help, and also I'd have considered giving him new legs that have the "traditional" Star Wars leggings... Like the Endor guys had. Nein Numb comes with ones that I think would fit perfect. You'd lose moveable feet but I think it'd be worth it for "variety".
CHEWIE, your rebel is very cool and adds diveristy to the ranks... For my tastes though I'm more a "uniform" guy even for the Alliance, so I'm not sure I'd have deviated from their traditional costumes as seen in the movies unless he's part of a guerilla force, however htis is all just aesthetic differences in how we view the Alliance so that's neither here nor there even... The parts look great together. I'm wondering how the arms blend in with the torso though? They look good to me but without hte jacket I'd think the jacketed arms would show a gap. Cool that they don't seem to.
Jeff's stuff's sharp. I see your point CHEWIE about there being something with the blue soldier's look that stands out in a way. I don't know the Andorian species to comment... Chiss have red eyes so it's not one of them but that'd have been cool actually if it had been. The parts match up well though so that's cool by me, and for my tastes the paintjob's great it's really just the eyes that don't match. I think solid black would look better even, just to spice it up, but yeah Chiss red would look cool too... Again though I don't know what species the Andorians are to comment on that much Jeff.
I like the Hoth Commander too... Simple means of diversifying forces isn't anything bad. A field backpack would add something I think if he's out there in the trenches, but that's just a minor tweak by my eye... Maybe the addition of a cloth piece stuck to the hat would be cool? A scarf you could wrap around the mouth would look pretty neat I think Jeff.
And your Rebel Commando/Endor Trooper is a simple parts swap but a good one. Short of changing the facial features some way there's not much you can do to change him up... There's a LOT of detail on the costume that can use a GOOD paintjob. For instance a round pouch hangs off his right hip that's not even painted, but looks great... It has straps hanging off it too, looks neat.
For a suggestion to those of you making figs, I've found that a GREAT swap to do for Endor Troops is that the legs/lower torso of the POTF2 Commando fit the Saga Endor Commando's upper body perfectly. You just cut a top piece off the POTF2 figure's lower torso, but the fit is great then. It makes for a better "neutral" stance Saga figure. Simple enough and with some repainting another good way to add diversity to your ranks again. And it gets rid of those ugly action posed Saga figure's legs too.