Thankyou all for your feedback and suggestions. In what ways could I improve the posture of this character so that he does not appear to be stiffly upright and running a marathon? How could I give the appearance of, eg, dashing adventurously through a ruined temple ready to engage the next foe? I will make the arms less linear, perhaps tilt the chest forward slightly. Could the head/neck be angled differently or repositioned?
Many regards.