@SnuffyBucket I won't be too helpful, since I don't like to edit and don't have a lot of experience with editing programs. I use Reshade and use different presets off of different websites. Right now I am using
clear bloom by pictureamoebae for a preset. One of the settings doesn't work for me and I have to turn a couple of them off, otherwise, it bogs down my computer (I have an older computer). But I find that just a few Reshade settings gets the look that I want. I like clear bloom because it gives the screenshots a little softer quality, and it helps with the lighting and shadows. I was using a different preset in story 1, but I found that one was a little too dark for my tastes, and I ended up lightening a lot of my pictures.
I'm not super picky about screenshots, usually because by the time I'm done writing, posing, finding CC and taking screenshots I've already got a bunch of time sunk into a chapter, so I compromise a little on screenshot editing. I use Gimp for editing (usually just lightning or darkening or adding simple effects). I use MS Paint if I am doing very basic things like chapter images with text on my thread.