Create a new file of 35x30 pixel wide with transparent background.
Zoom the canvas to 800%. Select the pencil tool. Set the pencil size to 1 pixel and draw this black color outline.

Draw more black color lines to have hairs.

Change the foreground color to #FFB76F and draw the lines inside the face.

Fill rest of the face with #FFD08F color.

Watch the image carefully and draw lines with color values shown in the figure.

Now, zoom out to 100%. The face of lady is ready.

Draw this shape with 1 pixel wide pencil.

Fill the outlines as shown in the images.

Zoom out to 100%, change the background to white. Our drawing is completed.