Hi, I'm not sure I'm good enough to make tutorials but here's some things I do for portraits. first of all, the bigger the face is on your drawing surface the easier it is to get an accurate likeness. I start out with a rough outline and don't make it fully opaque. then I do another layer where I improve the outline. Mouth, nose, eyes, hair, face shape are important. In my drawing one eye was too low so I fixed it. easier to fix the structyre before adding color.

Then I erased the first drawing. You can repeat that step as needed until it looks like the details are correct.

Now do color on a new layer underneath. I try to pick a color that looks overall like the most accurate for the skin, eyes, and hair. Later you add subtle differences in light and color that will bring it to life. I merge the color to the layer with the drawing. You want the drawing to ne light because you don't see black lines on someone's face in real life. Also, draw what you observe not...

draw what you observe, not what you think you see. pay attention to spaces between the lines too for accurate placement.

With the color, add some varuations of light and dark for where the light and shadows are. You can add different tints too both in the highlights and shadows.

For there I just keep working the details while zoomed in til I get everything to look as closeto the reference as possible. Don't be afraid of mistakes cause youcan always add more on top to fix it.

oh thx