As this picture shows, I'm not good at design at all. I'm a videographer and I'm designing a dvd case for a client. This is what I have so far. What is it missing? Any help would be greatly appreciated! Thanks in advance!
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1) Search for other successful examples.
2) Copy the distribution / diagram.
For example, it is the DVD Case of Ubuntu
This design is close to your design, however, the back also includes more text, the pictures are not put randomly and has the same size / proportion
ps: Also, the orange Intel x86 Edition bar is a nice touch.
ps2: Don't forget the disclaimer & copyright & authorship note