Cool Guitar Decal Renovation

Years ago my bro bought me a guitar (which I had been asking for). It was a complete surprise though that he had bought it from a school friend, as I was expecting mum to buy it from Pools in town. Anyway, it had these decals on it which have always been pretty cool, but have started to fade over the years. This is what it looks like now; 

And these are close-ups of the decals; 

 


The mottled white patches you see are just reflections caused by the light coming from my window. Although, my guitar(s) could do with some beeswax oil...