i received my first valejo pigments and i wanted to darken the face of a 1/35 figure i had alraedy painted.I applied with a dry brush the black pigments but they fall right off.Try again no show.apply the dedicated liquid and applied.i waited one hr and tried brushing it off to simulate an unshaven face ,i was hoping it would come off in steps but nothing doing,it comes right off completely.Can someone pls help and explain the steps .
