For this terms tutorial pack I went for a step by step video guide on ways to approach coloring with lineart as well as painting using a sketch.  For coloring from lineart it's a bit more straight forward. I block in basic color and layer on the shadows. For painting I like to use the lasso tool to help me isolate shapes such as the hair. In this tutorial I've used the solid round brush and the airbrush for a bit of blending in the painting phase : )