Download this app if: you need an artistic painting tool.
Sketchbook: a complete paint and drawing software.
A paint and drawing software for Android devices.
. configurable brushes (shape, size, opacity, hardness, smudge option, painting mode, pressure sensitive)
. 2 layers
. patterned strokes
. color picker
. intuitive navigation...
Potential... — Needs instructions on how the advanced features work within the app, but apart from that, quite promising.