The frizzled edges can be created with filters like Roughen Edges. Conversely, all kinds of structure can be introduced using filters like Texturize or the painterly filters. Same for introducing random specks with scattered, jittery brushes Another, better method would be to use scanned/ photographed textures liek rough cardboard or packaging paper and use whatever shapes you have in mind as a mask on them, then colorize them. Which method you use will of course depend on the specific desirred look, but that is to say there are plenty of options. One must just not be afraid to experiment.
Okay thank you very much, I will play around with it and i'm sure it will end up creating something similar.