To master digital realism, incorporate texture techniques into your digital art. Techniques such as using photo textures, painting with texture brushes, employing natural color palettes, and adding additional light sources can all contribute to creating textures digitally. Experiment with these techniques, continue to learn and grow as an artist, and you will soon have the skills to create realistic digital paintings. Remember, art is a journey, and with practice and dedication, you can push the boundaries of digital realism in your artwork.