Paint experiment

Could you explain in a little more detail what you did and what you mean by shrank back?

@Mark Jundanian The light parts are where the paint dried and pulled apart giving the appearance of cracks or as some people described them lightning.
The process is called pouring where you add the colour to a pouring medium and then pour it onto the piece this is done with a number of colours and then the piece is tilted to get the paint to go where you want it. I still have more learning to do and hopefully a few more like this to experiment with