Courier of the Void Mark II

After spending some time learning Maya and Substance Painter I decided to go back and re-model the 'Courier of the Void' that I modelled at the begining of September 2017. I still have a long way to go but the progress and skill learned in the last four months really shows. Modelled in Maya, textured and rendered in Substance Painter. As a student any tips, criticism and comments on improvement would be really appreciated.