Coloring this ark would be a lot of fun because you can use a lot of colors in it as there are many different things to color here. First of the coloring the ark, a preferred color of an ark could be shades of browns but it can also be colored in different colors, it can be given multiple colors too like blue and brown. After coloring the ark, the water should be given a brighter shade of light blues since the background sky also needed to be colored in light blue shades, so the water can be given a bit darker shade and the sky a little lighter. After this comes the most interesting part, coloring the animals in the ark. Preferred color for giraffe can be light and dark shades of browns, where the elephant should be colored grey and cows can be black.