Making art is fantastic and the end result is a disappointment when you are not satisfied with it but it is probably in your head and if not then change the look of the painting by waiting for it to dry and then spray over it with a little hairspray to give it a shine. This will boost the painting.

Neat idea

You have to wait for the paint to dry before you do this or it will end up in a big mess and your painting will be ruined and running everywhere. Unless this is a new form of art you would like to use, it is not recommended.