I've created this picture for Happy Birthday wishes.

Created completely on on the iPad Pro and Pencil with the app Procreate.

Here is the speed painting video on Youtube:

I had some issues with the Calligraphy Pen for inking on small brush sizes on the iPad with ProCreate.

I opened a case on their support website and I was trying to fix the behavior, so I was playing around with brushes and this cartoon was the result.

The whole process creating it happened on the iPad Pro with Pencil the app Procreate.