Nice to see a version of the figure, haven't seen one in a while. That grey turned out nicely Edward, very smooth.
On your photos, they're quite grainy and it gets in the way of appreciating the paintwork. There is software that's amazingly good at removing image noise but it's better to not have it to begin with if possible, so you could do with having more (diffuse) light. By itself this can reduce noise quite a bit but you should also be able to change to a lower ISO setting for a two-fold improvement.
Einion