When you only have three or four finished pieces, the most common mistake is treating each one as a standalone image and hoping the viewer fills in the gaps. Instead, give each project a short written account of how it came to be. Describe the starting point, what problem you were trying to solve, and what constraints shaped your decisions. Even a paragraph of two or three sentences per project shifts the viewer's experience from looking at a result to following a line of reasoning.
Process artifacts make a single piece do more work. Early sketches, discarded color studies, wireframes, or rough prototypes show that the final version is one outcome among several you considered. You do not need to include everything, but picking two or three intermediate stages and briefly noting why you moved past them demonstrates judgment. A viewer can see not just what you chose but what you rejected and for what reason.
Another approach is to frame the connections between your few works explicitly. If you notice a recurring question, a preference for a certain structure, or a shift in technique from one project to the next, say so directly. This turns a small collection into a narrative of development rather than a sparse gallery. It also helps the viewer understand what you are likely to bring to a future project, which is often what they actually want to know.
Finally, consider including one piece that is unfinished or exploratory, clearly labeled as such. A work-in-progress with notes about where you are stuck or what you are testing shows that your thinking is active and ongoing. It fills the gap that a small number of completed works leaves and gives the viewer a sense of your current direction without requiring you to pretend you have a larger body of finished work than you do.