I have some polyurethane and some polycrylic. I don't know if that's the same stuff? I also have some spray that is made for a 'clear finish'. Is that the same thing? Will I have any problems getting the stuff on? What should I look out for? Will it look uneven? Is the finish going to ruin the original purple on there?
ANY feedback would be appreciated. Sorry, I'm just typing all the things that are popping out of my head so I don't forget what to ask. Thanks so much in advance, fellas.

Here is a pic of what I'm working with.
