Are these types of requests allowed?

So I haven't found many rules on this so I thought I'd ask. Here's my situation, over the next few years myself and others will be branching off and forming an independent film production company. Where we'll be doing plenty of clientele work but also making our own personal and fan made work. Amongst this is a lot of SWTOR base material (Short and Feature length Live Action). Seeing as Bioware has only released a handful of concept art, We'll need more. This is where my big question is. Would I be allowed to make request threads in regards of concept art for our Star Wars Film Projects? Giving a basic/rough outline on what I'm looking for (Characters, Weapons, Vehicles, etc...) and then having multiple members work on their own designs. Any help is appreciated. Thanks!