I did the fabric with an airbrush. I hand cut a stencil, and had my friend Allison help line it up and hold it in place as we slowly created the base of the pattern. I went over it afterwards free hand to blend it all together.
I can't believe you have a Devianart! A while ago I was inspired by your Tali cosplay to attempt my own for next year. Can I ask what type of material you used for the hood(is it a polyblend? I plan on tracing the pattern by hand) and the shoulders/forearms?
I've not played Mass Effect and I don't know the character, but the detail work on your outfit is stunning. I love the airbrushing you did on your fabrics and the fact you made a face for underneath the helmet, even though you can't see it very well. It's an area that would be easy for someone to cop out on, but you went the extra mile. Good job!
Did you vacuum form that visor? I'm interested to know your process.