This bright and cheerful illustration is sure to bring a smile to any smiling face! The yellow rectangular sponge is in the center of the page and is wearing a pair of red square-shaped pants and yellow shoes. His arms and legs are thin, stick-like and his face is filled with cheer, with big blue eyes and a wide, happy smile. To give the picture more life and dimension, I would suggest adding in some shadowing to areas of the body such as the pants and shoes. I would also give this sponge a hint of pink to blush the cheeks, giving it a more animated look. The arms, legs, and beard all could be filled with a light blue for a fresh water effect. Lastly, I would add a simple sea green texture to the background for a simple and calming effect. With this combination of colors, this coloring page will be a fun and inviting delight!