The Mark I was a rhomboid-shaped vehicle with a low centre of gravity and long track length able to grip muddy ground and cross trenches. Sponsons (also called "barbettes") on the hull sides carried two Naval 6-pounder guns. There were two Hotchkiss machine guns in the sponsons and two removable guns for the front and back.
-Quoted from Wikipedia
By no way is this meant to be accurate to the Mark n tanks. I built this primarily for my War of the Worlds comic (which in that time period, shouldn't have tanks lmao)Still I think this is a solid interpretation of the tank.