If you just select a polygon with random points, it'll cross-over each other and create interesting alternating
This plug-in allows you to specify a number of random points to select with.
Sorry Tin for my poor English. I meant it is enjoyable as one can get different looks after running the plug.
I had "funny" word as similar in meaning to enjoy and I didn't want to do any offense.
I did different steps on each result after running the plug.
On the first one, I applied contrast.
On the second one, I desaturated the selection and then colorize and layer mode.
Don’t be afraid to start over. It’s a new chance to rebuild what you want.
With version 2, the selections are outside of boundaries so your image is filled with shapes rather than limited to inner boundary points.
Here i used selection then border selected to create this effect.