The most important thing to keep in mind is that your mood board for a design project should convey your message clearly. Whether you use only images or add some text or other extra elements to convey your design inspiration, the central theme must be reaching the viewer loud and clear. You can take feedback from your colleagues before presenting it to the client to ensure whether the purpose of the mood board is being solved or not. If they have too many questions to ask, you need to rework it.