Contemplating commissions...

Ok, I just had the most wicking cool idea.
At least, I think its cool, let's see what you guys think.
You've seen those single character, posed portraits that PL Nunn does? The Ronin Warriors 'stylin' series? The Gundam series with the borders? *drools*
So... I was thinking about a series of GW portraits of the guys... in fighting poses.
I'm very much seeing Duo in a kind of bare-chested, boxer's stance... taped knuckles... 'I'm gonna kick your ass' stare. That kind of thing?
But I need poses. Fighting styles? Background ideas? Weapons or not? If so, which ones? Clothing suggestions?
I think I want something in the background of each portrait... something muted, maybe symbolic. Any ideas?