i saved all the parts on one layer..."Gears Photoshop & GIMP Brushes" by Obsidian Dawn.....
made bars by creating rectangular fills and adding bevel and emboss...created trach chain by making a circular fill, cutting out center, adding bevel and emboss...
had to wait for my flash drive to be returned....(was borrowed to print a birthday pic)....but here's my original city lights photo....it should actually be in my stock....