I think that my Gears Team would be quite easy to do , because all of them armors are straight from the games , because , just like you , I want them to fit in the universe , like part of the canon. Of course , faces and hairstyle would be problem but doesn't matter , at the moment I couldn't effort any commission , not even a simple painting , 'cause I'm uber poor by now ahahah
When I'll find a job and get some spare money probably I'll text you back , because the previous commissioner was kinda good (my avatar is from his fist job commissioned by me) but he had MANY problems with Gears armors. Since you're an expert , and even your paintings are amazing (absolutely adore Joy!) , probably I'll choose you. Keep it up!