This nose is at an angle because I'm not really that good at drawing front-facing ones
Remember that the nose should be directly over the line you drew in the middle of the face!

Try to keep the curve of the face and the fact that eyeballs are spheres in mind when drawing the eyes. Watching tutorials on YouTube to get the shape right has definitely helped me

Eyebrows!! I love drawing them because they really help emphasize facial expressions. If the nose you draw is at an angle, one of the eyebrows should connect or almost connect to the top of the nose ridge.

And now for mouths! I drew a few examples, to show how this feature alone can really change a facial expression.