monochrome doodle - 31.3.2014

This reminds me a little of those string and pin sculptures that were the rage in the 1960s, I think.
I call it a doodle because I start with a blank sheet, add something like a gradient or a Photoshop fractal brush, use an effect - paint daubs or poster-edges - and play around from there. It's just like sitting in a meeting or lecture and starting off with a square and building it into a fantasy castle or a complex pattern or whatever..... Whether one can do that on your tablet these days, rather than pen and paper, I don't know, but I suppose there are probably several thousand doodling 'apps' out there!