Hello the tank is looking good. Thats an interesting red plant(cardinalis) in the background i dont see those very often. The red pink color is likely hard to achieve without proper lighting. You would likely need a higher end light, although what do i know?
S repens carpets look really cool in my opinion. If you can get it to grow out nicely props to you. I have a few in my tank that are doing so so. One tip as the tank gets older you may need to watch out for algae.
I recently started to use a turkey baster to shoot the substrate with little bursts of water to get the muck and mulm/fish waste out, then sucking up that little cloud with the siphon. ( Used for cleaning the
aqua soil without sucking any up). I used to be a big advocate for leaving the substrate alone in a planted tank. Although if this dirt cleaning method helps with my algae i will make it a practice. I have a ton of bba i've been fighting with for a few months lazily. I have seen 2 hour aquarist talk up that turkey baster method and his tanks do look pretty dang clean despite them being older planted tanks. Happy fishkeeping and i wish you well.
I just realized after i posted this that you dont have dirt. On the bottom haha.