Here are some screens of the level I'm working on with a few different post processing FX added. It was fun playing around with the effect to make it look like a cartoon, Borderlands style. Some very nice effects can be achieved with some experimentation at this stage. Some of the effects can discard all the hard work you've done and make the game look entirely different, probably something to bare in mind when deciding on a distinct visual style in the future. A test should be done as early on in the pipeline as possible when it involves post processing, to avoid unnecessary work on textures, etc.