I wouldn't worry about concept art. Move over to the Mando Mercs site and use the Mando Maker program to lay out your color scheme and get to scrounging up parts to make stuff.
Wow i am new to this site, looking to create a unique mando armor form storm trooper set, but lookng aroudn there is soem amazing talets her and I am bit humbled. any help yu guys could send my way I sure woudl be apprciateive. I have a look at an ebay armor set any oppinos woudl be helpful.. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250507385427&_trkparms=tab=Watching
Black is awesome, i am thinkging of modifiy this into a unique BH setup of some sort working out the details in my head but any ideas?