Okay, rocks look Okay, but it looks like a pile of rocks. Try and think of a flow through form. Something that your fishes can swim through and most important, your water can flow through. I made that mistake to and an old reefer pointed that out to me. You want the water to be able to flow between the rock so that waste can be moved about and filtered either by your skimmer or mechanical means. Be sure the bottom rocks go all the way to the glass so that your animals can't cause a landslide. That short of a trip should not have killed off yor rock. some may have died off so you will have to test for ammonia for the next week or so and if there is an ammonia reading then you must do a PWC
That's a nice amount of rock, so don't get me wrong about the comment I made about it.