Hello Crayon is an easy to use app for coloring and illustrating. It has a variety of textures from crayons, markers, paint brushes, paint-fill, and a pen. Users can free draw, complete coloring pages, and annotate pictures. This app would work well for students wanting to respond to questions and email them, or even create amazing slides for a presentation or slideshow.
Other great apps where these pieces of work could be utilized: