Board Thread:Speculation House/@comment-70.72.38.180-20150401032633/@comment-70.72.38.180-20150426013644

^In other words, they are foils. My headcannon is that Cinder is a 'dark mirror' of Ruby. She too was young and idealistic but she when found out about the truth/reality of being a huntress, she decided to destroy the old system and establish a new one in her (or her boss's ) image. It's obvious that Ruby is being set up for a breakdown given her innocent personaity but unlike Cinder, who chose a violent route, Ruby will rise up and help change the world.

In regards to colour symbolism (remember that colour is an important aspect of the RWBY universe) Ruby and Cinder share the same colour scheme (red) with one carrying the positive side (Ruby) and the other negative (Cinder). For 'positive red' Ruby is passionate, courageous, and confident. Cinder on the other hand, the 'negative red' is dangerous, lustful (just look at her), powerful (at least by student standards), and possibly angry at the world if she's trying to start revolution. As for their eyes being opposite colours, gold can somtimes symbolize power, wealth and wisdom. Silver can symbolyze feminine energy (in relation to the moon) purity, truth, strength, and sometimes magic.

Yeah they are no doubt mirror image of each other.