The tank's looking really clean at the moment, I wouldn't change a lot about it :thup:
In regards to the sword, rehoming it to a larger tank is probably best. It's likely to be a common species so perhaps even exchanging it with another member who has a smaller sword or waiting till it fully matures and produces pups could work here. I can also offer you a few pygmy chain sword plants if you want to pick them up, they'd suit the scale of your aquarium a bit better 8)