First you have to draw lighthly so you can't ruin the paper . Then you should not rub hardly. this is the way to do the picture .

After coloring and editing you have to make the picture look prominent . The way to do it is first put a nice background . Then for the coloring the outline for that certain thingshoud be darker than the filing of that particular thing. Then for the finishing touches you should either outline the whole picture with black or highliht sketch pen. After that you write your name on the paper in a stylish way.

Outline it with a marker or some kind of black pen to make it stand out!