I’m switching over to character design practice for a while now (starting off with female faces).
In this one I wanted to learn how be a bit more dramatic with lighting, hence the shaft of light on her face.
Line sketch: 
Blocking in colours: 
Changed my mind about the colours: 
Adding in more detail and changing the hairstyle: 
Adding in the shaft of light: 
Her mouth looks a bit odd to me so I think I might hunt down some mouth drawing exercises.