if you are making a model then stop. There are plenty to use, we don't need to learn to make more.
If you are fredding also stop. just take missions from different campaigns and plug them in.
Actually, that's precisely what I do whenever possible. Especially the first one, but the second one too. (why make your own SEXPs when you can cannibalize other people's and spare yourself the headache of making the logic work out?)
I wouldn't use something that I made when a suitable substitute is available of better quality just because there is some intrinsic benefit to me having made it. That doesn't mean I wouldn't try, but just that no one will ever see it if I can't make it better than something I can get elsewhere.
I'm a firm believer in minimum effort. I'll only try if I have a reasonable belief it will lead to something, and I believe that everything that just because I made it myself, it does not have any greater intrinsic value that something I mugged off someone off the street. I'll use whichever is better.
I guess I'm the weird one. Oh well.
Well, that pointless aside aside, the oversaturation might just be something with your launcher settings.
Is it that your rig can't handle postprocessing?
I've also noticed that there's some kind of odd compression grain on everything (all the screenshots up till now even). Even the space shots with ships I'm used to seeing don't look like they do on mine/most other people's... Might be jpg compression adding a lot of "noise" to everything? In that case it makes it difficult to actually judge how the thing looks under other conditions.