This particular look I chose for my Guardian is called the Krytan Avenger.
The Krytan Avenger look is a mix of T2 and T3 Human Cultural armor. The dyes are a mix of Midnight Ice, Black Cherry and Antique Bronze.
Weaponry used in this look are the Crystalline Blade skin and the Tormented Shield skin, these are completely optional. I found Genesis to be a good style addition too.