I’ve been enjoying the realistic graphite drawing course and I thought I’d bring my newly acquired skills into practice by drawing a portrait of one of my own cats. So far so good, but my cat’s fur is a mixture of white (or lighter coloured) and dark hairs (including black). On a separate piece of paper I’ve been trying to add different kinds of white (white charcoal, white soft pastel, white hard pastel, white coloured pencil, white gel pen) over graphite, but that doesn’t work. So far my solution has been to leave areas of white, or use my eraser pencils (for the whiskers), but is there any other way? For the finer hairs even the mono zero eraser pencil is too crude.
Edit: I’ve added my photo reference in case that helps. (the name on the photo is my partner’s, he took the picture)