Workshop - Using a 'Fill light'

So last friday we were able to repeat a similar use of technique the three of us rotating as the model, assistant and photographer. We were using a similar lighting to the previous workshop only this time we were able to practise using  a 'Fill Light' which is a light used to fill in the shadows, its not very powerful which is why it's perfect for this.
For this task we tried to represent a certain character in the photo's, these being:

- The Worker
- The Intellectual
- The Sales Assistant
- The Waitress/Waiter
- The Cleaner


Below are the shots i was able to capture, because of the late start and the long brief we only had time to capture three shots each. Mine below are of Christine:

Christine and using the 'Fill light'

Cleaner - F11 Shutter Speed (SS) 500
                5.6 Fill Light
               F11 Pack 7.3 - 5.6 Fill Light
Intellectual - F11 7.9 Pack - 5.6 Fill Light
Waitress - F11 Pack 8.2 - Fill Light 5.6

I am happy with the shots i managed to capture but i still think there is room for improvement. I do like the lighting of Christine reading the book, i think the focus point is in the right place and also the shadows are not too overwhelming.