This coloring page is perfect for any Lego fan looking to use their creativity! With four ninjas in different colors, the colors chosen can be used to create a fun, vibrant scene. The ninja in the bottom left corner should be colored orange, while the one in the bottom right should be colored blue, and the ninjas in the top corners should be colored black and white respectively. The hoods and swords of the ninjas should be left uncolored to make sure that the colors stand out. To create an interesting composition, use complementary colors to make the page stand out in contrasting hues. Finally, make sure the colors you choose for the details add a further layer of interest and don't overpower the ninjas!