Add other mediums
If you prefer to use only one medium that’s perfectly fine. However, if you do want to experiment, please don’t feel intimidated by the trial and error process of using multiple mediums within one piece. I was unsure at first, and it kept me from exploring so many wonderful opportunities. Each medium has its own traits and effects. Each can provide specific textures. Using different mediums can be extremely interesting and fun for both the artist and the viewer. It’s good to understand the mediums you’re using, though. This helps provide some idea of how a medium will work before applying it.