I have been using a new app for my iPad called Art Set.
Cosmonaut. It is wonderful for drawing, and works lovely with the app Art Set.
The wide-based stylus feels just like a marker. The Art Set app has all the mediums you might find in a conventional art set, even blending tools including my favorite blender a tissue.
RH West Photography. I love her pastel textures, and they worked perfectly with the white cup surface.
So, I designed several different versions in a collection I call: