Doctor Who s7 - doctor's mind

This is a concept I made in 2013 for a series of shots for Neil Gaiman's 'Nightmare in Silver' episode of Doctor Who (series 7). I was asked to come up with a look for the Doctor's mind infected by Cybermen. I made this with After Effects & Photoshop using a few plugins for the particles, and ended up animating around 30 background shots for this sequence ... 🙈