You're very welcome ! May I ask you which kind of paper and pencil do you use to draw this kind of portrait. I've bought a black paper and a white pencil but the pencil seems too dry and the paper too hard... Thanks by advance for your respond !
The paper I use is a nameless brand (probably of Finnish origin) that I buy in separate sheets from a local crafts store, so I can't really help you there (I did draw one of these on Canson pastel paper, on the less textured side, but I didn't like it, it's a bit darker and the texture was a bit wrong). And I don't have a preference for white pencils, I just use what I have at hand, though they do tend to be either Cretacolor Marino or Derwent Coloursoft, because I can easily get new ones. But yeah, I've used up all my white kiddie pencils I had lying around for ages and I've gone through several Faber-Castells. They all kinda feel the same, except perhaps Prismacolors, I don't use them for this kind of work, too waxy.