Lovely Work Joy... I would use only the grafite on gray areas, it kind of leaves a grafite/pencil coloring mark kind of sketchy like... unless thats what you are after???...
Federico - Thanks for the advice. I was just trying something new. The pencils are actually watercolor pencils, with muted color (hence the name Graphitint). There is graphite mixed with a muted watercolor that can be wet and spread like watercolor. In this set, there are no brights like traditional watercolor pencils. They are suggested for landscape, portrait and animal works.