World War One Armored Cars and Tank Models 1/72 Scale

Picked up a group of six World War One models in 1/72 scale. I just did some quickie research on these so some quickie descriptions.
First is an Austin Mark IV which was used by the Russians in WWI.
Next is one of the British Tanks of WWI with the famed rhomboid shape. Not sure which Mark this is. Seems to have more machine guns than usual. I can tell it is a male as it has cannons and machine guns. The females just had machine guns and yes they called them males and females.
Much more to come.