I am impressed! That was just a simple hose down, spray de-greaser, brush where you can, then hose off? You didn't have to cover the alternator with a plastic grocery bag? I've always wanted to clean the engine bay, but worried that I would miss a pool of water somewhere and with Murphy's law it'll probably be an electrical area.
I'm pretty sure you were careful with the water near the battery. Again, looks better than I ever expected for something so simple.