Hi Andy,
Excellent bust, as noted before, it is better sling the gun over his back. I played the violine for long time in my youth and I would like so say, that you can`t play the violone with this position of the gun. But with the gun on the back you habe a very good contrast of two very different "instrument". This soldier shows me two different characters of human beeings. On one hand, the hard job of a soldier. On the other hand some human characters.
Cheers
Bastian