Oooh after looking at them pictures he definitely is. Yeah he has white round rings round his eyes!
I had another look last night and I think it is. I pulled the hair apart quite a bit as he stayed still and it seemed that it was darker hair at the bottom by his skin, whereas on the top it was white.. that’s what I was so confused. There is definitely some real small black pigmentation on his skin but I think most of the dark colour is from his hair root?! Still not sure about the one by his eye but maybe it’s age or like you said nibbling at something
I’ll investigate the mites! Thank you for your help