I am looking at how I can edit this so that it randomises the colours in that colour ramp, then renders it out then repeats the process automatically. Say 100 times, producing different results each time. 

Is that possible?[nodes][1]
[![enter image description here][2]][2]


  [1]: https://i.sstatic.net/ULWDp.png
  [2]: https://i.sstatic.net/PWwLd.jpg