I saw this on DA unfortunately when the project was nearly over, but the extension allowed me to start and finished.
First 4 faces I spent 15 minutes or more on, beyond the timeframe requested.. They are divided up by the line to separate them from the rest. The others I forced myself to keep within 10-20 minutes by using 10 minute timer.
I used Corel Painter.
Some of them I captured well, others not so much.
