Since I took the pictures off Miiverse I'll be posting them here.
Obviously, done using the Wii U's Gamepad and the regular Miiverse drawing tool: Eraser and pen squares.
I haven't used any stamp or reticule.
Scribbly as hell but it was fun doing.
This here's a Pikachu. I really loved the pose and how the effects around the finger ended looking like!
Miiverse © Nintendo
Pikachu © The Pokemon Company, Nintendo and Gamefreak
Silly excuse for a Fanart © disneyishchimera