i personally think foundation makes me look worse. i just use concealer on my undereyes, & high points of my face & i use the least amount of products. i like my natural skin to do most of the work& do a light bit of blush / highlight to enhance it. sometimes very light handed powder contouring.
it can look weird without some base makeup! i would recommend a tiny bit of undereye concealer, translucent powder to set, a bit of blush at the temples, then highlight! & something on the brows - at least a gel to set them in place.