This coloring page of a Tanks is an intriguing scene. The large, green, metallic vehicle has a big gun on the front and a small window on the side. Its treads look like they could take it anywhere. On the back is a door - a great detail to add to the artwork. To best capture the dizzying details of this Tanks, you could use shades of green ranging from a bright lime to a deep hunter green to portray its metallic surface. For the gun, use a dark grey or black to create contrast against the green. You can use white or yellow to highlight the small window and the door. To make the tank look even more life-like, use brown for the treads. Finally, be sure to add smudges of white and silver for a worn and weathered look.