A considerable improvement on the 'scaping. Good work! I'm a big fan of swim through's, caves and ravines. So while I hated your old look your new look is awesome. Ooops, I mean, your old look was fine.
What are you using to test ammonia? I would almost just throw that test kit right out. Don't bother testing ammonia, test nitrite. When you get a zero nitrite reading, your initial cycle is done and your ammonia is zero. I've noticed with a lot of ammonia test kits that I'd get a nominal nonzero reading anytime I tried it, unless it was a FW tank. I don't trust ammonia testkits (even ones that say SW) at all.