In this coloring page, you can see a submarine which appears to be surfaced from the sea. It has a sleek and long shape with a conning tower on its top. The submarine has a grey base colour with some brown and green camoflage over it. On both sides of it, there are six torpedo tubes which add to the realistic look of it. To color this picture, I would suggest using lighter shades of grey on the base before adding the camouflage of brown and green on top. To really make the submarine stand out, I would suggest using a few bright colors as well, such as yellow and red, to create some extra contrast and make it more eye-catching.