Looks good but I have a few suggestions.
I would redo the switch. The metal plate can be replaced with a washer, painted black. I would also put the plastic piece on. It also keeps water off the PCM. Not having it there may lead to problems down the road. This would also provide a more finished look.
Wire loom is your friend. It makes for a cleaner looking install AND it protects the wiring from rubbing and chafing. Picture
#4 is a particular problem, where you have wiring passing through the round hole in the metal bracket. That WILL eventually rub you a short circuit. What I would suggest is rerouting the wire underneath the radiator support, hiding it in loom, until you reach the existing factory loom. If there is room run the wire through the factory loom, if not run it in a second loom and wire tie it to the factory loom. This will let you run the wire in a hidden manner to the power point. Run the loom right up to the power point. This will both keep the wiring from distracting from the lighting job and will remove any potential shorts caused by wire rubbing.