Landships II

Not bad... while somewhat slim in appareance, that is actually well proportioned. The metal might allow a minimal degree of posing them in a slightly different way to use them in dioramas and suit them to other artillery pieces. The only thing I'd modify a bit is the fact that all figures need a "haircut" in the back of the heads. And that the shoes are poorly shaped.
The officer figure is the best of the group, and painted differently can even pass as a decent pilot to pose besides an airplane model (I'd need to take off the accoutrements across his chest and add a new pistol holster) Perhaps adding a map or a clipboard to the hand in front, the pose seems odd without anything on his hand.