It's definitely looking better.
Maybe something to keep in mind if you ever want to replace rocks or plants: while in one of my college painting classes years ago, I learned one trick to create depth is that warm colors (red/oranges) tend to pull forward while colder colors (blues/purples) push back. Worked out on flat paper/canvas so it's got to work for a shallow depth tank too. If you do find any replacement rocks, try placing light warmer colors up front and darker cooler colors to the rear.
that's a great suggestion by the way. i keep the red/orange petrified wood up front in my tank, and leave the more washed out pastel like colors for the back (white foamboard with background light). really helps with depth. if you have too bold a background in the back, it kinda washes out what's in front of it. thus, i'd go either all black for the background to make the foreground pop, or put the bolder colors up front and wash it out in the back, which i did for my tank here: