That is going to be a great looking tank. I love how you were able to pretty much background it with mopani wood. And nice contrast with the stone. Only thing that immediately catches my eye as a concern might be the substrate, but please correct me if I'm mistaken. I only ever see soft round pellets like that when it's acid buffering substrate for Caridina shrimp. Which I personally keep and use those on. But unless setting up a Caridina tank would be loathe to use for plants and most fish for obvious reasons. I'm guessing I'm about to learn about a planted substrate that looks just like those that I use for crystals and bees, and not informing you of anything though! But if you don't mind, please let me know what you're using.
Nothing good happens fast in an ecosystem.