I know apply eye shadow can be difficult, or knowing where goes where. I found this pictorial that hopefully helps all new beginners or if you are already experienced in makeup.
So with an flat brush and a beige or almost your skin color shadow apply it to the crease.
Then with a fluffy brush and some brown (you decide how dark) and swipe the color side to side on the crease/ eye socket.
Next you can use a white/ champagne or just a color that can be used as a highlighter under your brow bone with another flat brush.
After that you may apply liner if you wish, curl lashes and mascara.
You can use different colors with this method and hope it helped.