This tutorial is beginner friendly, informative and goes in step by step on teaching my girlies how to contour. It also showcases the correct makeup brushes to use when contouring your face.
With my choice of makeup shades in both cream and powder I believe you will have an idea as a dark woman on which shades to choose from when purchasing makeup in stores.

Products used:
Essence mattifying compact powder 70 espresso
L.A Pro concealer Fawn
Revlon Skin lights bronzer 115 Sun kissed beam
Revlon Skin lights lighter 120 Gilded glimmer
Yardley pink Blush