The three pigs are in the foreground with their backs to the viewer. They face a house built of straw with the wolf just behind them. The wolf looks up at the pigs with a determined look on its face. To emphasize the fairy tale feel, I would use bright, bold colors to contrast the straw of the house with the grey fur of the wolf. The pigs would be painted in a rainbow of colors, from bright yellows, oranges and pinks to pastel greens, blues, and purples. The scene should be cheerful, with the sky in a clear blue and the grass a lush green. Finally, I'd add some details such as small animals, puffy white clouds, and sunbeams to bring a sense of whimsy and adventure to the image.