The mix of green and brown, fresh and dry materials will provide the optimum combination of carbon and nitrogen to make good compost and it will prevent problems such as smelly, wet, or compacted piles.
Be sure to check the compost pile’s moisture content. Think of a sponge, the compost should as moist as a wrung-out sponge. Is it too dry, then sprinkle with the garden hose or open the bin temporarily to a rainfall? Too wet, then it is time to turn the pile and aerate it, and add dry material.
Now and then you will want to add a shovel of soil so that you introduce into the pile the micro-organisms that break down organic waste.
In a fairly short time, you will have a rich dark material that will make your garden thrive. Remember as the gardener said feed your soil.