I followed the tutorial step by step using Photoshop. I think I showed some weakness on the arm on the side view. And I also see some problems with the hips on the back view.
This is the image I chose for the study.
The construction lines in the desired pose.
A more defined version of the construction lines.
Lined and coloured up. I think this is where I am weak, I much prefer the rough sketch to the smooth define lines.
However, the shading is redeeming the image somewhat making it have more dimension and looks less flat. However I think I need a new approach to the lining of the image.