More detail for landscape

Hello I was thinking about the new terrain generation and it all looked little empty. Just something was missing there. My idea is to add nature more detail. Like rocks on the ground more grass typer or dirt types. Things that add more detail and the world doesn't look emty. Shells on the beach. Logs in forest that fell down, gravel and other blocks layers that would be only generated but nt obtainable (only creative), or maybye make forests less empty. Thanks for reading my idea