Skip foundation for now because there will be a significant eyeshadow fallout situation. Dark colors tend to fall down under the eye while you apply them, and make it look like someone punched you. Waiting to apply foundation until after you finish the eyes. This lets you clean up any mess.
I’m using a MAC Paint Pot in Soft Ochre as a base for my eyeshadow. Use your finger to put some all over the lid and up to the brow. It will even out the skin on your eyes and give the shadow something to cling to.