This is a design for the resurrected Omega in full colour from his days in the time war. I hope you guys like.
Yes (his mouth moves-nod to Arc of Infinity Budget constraints..LOL) a robotic mask is what he wears, though his voice is slightly modulated, it sounds more like an englishman, then a Dalek, or Cyberman.. He is highly intelligent, and thinks in terms outside of the normal. His plans are multilayered and he is more then a match for the Doctor, and the one Timelord who could have survived the Timewar, even if his newly forged body was destroyed. What if Omega decided to forge a new body, one made from a Tardis validium, a living metal body, which could tie itself to time and the vortex!