Photo Editing Exercise

Here's original:

I cropped it to focus on the seating area...

Then I chose two effects. The first is called Posterize. I love this effect; knew it from Adobe many moons ago. I played with the level - zero is black, 256 just looks the same. I settled on 4.

I diddled with Ripple - not so much. Didn't really like many of the so-called Artistic effects, until I got to Photocopy. Renders it like a bad xerox, but I liked the kind of architectural drawing aesthetic.