I have done a lot of hand coloring with marshall oils and it is important that you have the right paper. It needs to be matte surface and preferably fiberbased since it has a tooth to it. Or you can buy the art paper for hand coloring. the Marshall oils are translucent so it is hard to make mistakes but a small workshop on how to apply them was necessary for me. I enjoyed it a lot. There are also books that will help, those that discuss Marshall oils will help. good luck