This coloring page depicts Roddy in a dismal and eerie sewer scene. He is holding onto the edge of a toilet bowl while his facial expression reflects nothing but terror. He looks like he is about to be flushed away at any moment. To bring this page to life, start with a dark and dreary background. Use shades of brown, grey, and black to give the whole image a sense of gloominess. Add a splash of neon green or yellow for the toilet bowl for a stark contrast. Roddy should to be filled with both fear and determination, so try using dark blues and reds for his facial expression. Finally, for the small details, emphasize the grime with green and yellow streaks to evoke the feeling of a grimy sewer.