Compositing in Blender,
will get you
cinematic splendor

Compositing 1.1 Setting up the Compositor workspace

I personally feel to keep the compositing workspace like this,
as it is easier for me to get an uncluttered view of
both the nodes as well as the final rendered output

Compositing 1.2
Why even use
Node - based compositing

The node based workflow give you option to just change the pipeline and check the changes quickly,
rather than repeat the entire process from start
Because, you know what,
layers are players, but nodes are pros.