I will give it 4 stars for your first effort I think you have done a really good job and can't wait to see what direction you take this. With that being said I think the filter over all has to much of this new fog effect everyone seems to be using lately. It mutes everything down and makes it feel undersaturated and leaving me wanting to reduce it. But there is no option for that within the ppfilter, would love to see you expand the user editable parts of the ppfilter more. You got a great base to continue with here and like I said earlier considering this is your first effort into the ppfilter market you are well on your way. Thanks!