Sean, those are great. I especially like the first, your panorama, and the sixth, the one with the lasers being fired into the middle of the Milky Way.
We were just there in August, took a tour up to Muana Kea, and went into on of the Keck buildings, I don't remember which one of the two. We came up from the heat and humidity of Hilo, to the cold, dry air of Muana Kea, quite the change.
We got there aaround noon, the view was spectacular then, but to be able to be there at sunset and during the night, well, I envy you.
Excellent shots man! Wish i would have seen this earlier, i was just in HI for 2 months on a work trip. I would have loved to meet up for a drink or coffee, and photoshoot trip or something?! I was trying to get with a bunch of people from the forums, and thought of this one a little too late . Anyways, just wanted to say great work, keep it up!