Thanks SjorsdeB! I actually rendered these in a 3d modeling software called blender, and the input I was talking about in the description were number values for generating clouds and stars and stuff :) The nebula generator 'node' that I used was available for free online download, but took some serious work to actually get the numbers where they should be. Hence the "Tweaking" I mentioned at one point(probably on another post). Also I appreciate the honest review, thanks again!