Ended up realizing that painting in Sketchbook Mobile is my favorite of the free programs for my Tablet.
This one was in Art Flow.
And I tried out "Colors!" only to find out that you have to pay money to save pictures... so this is the only photo I could get of my drawing. That app was uninstalled pretty quickly afterwards....
Quick little sketch I did after re-watching the first Madoka movie for the third or so time.
And these were some quick storyboard thumbnails I did.