I could spend some time trying to find the pics of my custom 1911s, but I don't think they'd impress you, so why bother?
All I "require" in a custom 1911 (or any other gun) is:
1. Sights I can see.
2. A trigger I can pull.
3. A grip that's comfortable to me, and if it looks good, so much the better.
My custom 1911s and Commanders have hi-vis fixed sights, flat mainspring housings, and long no-hole triggers. Grips are usually diamond-pattern walnut. The Commander-hammer guns have 1911A1 grip safeties with a notch ground in them to clear the hammer. I'm comfortable with the 1911A1 grip safety and don't care for the looks of the "beavertail/duck butt" grip safeties, although I admit they're very comfortable to shoot. Two have S&W K-frame adjustable rear sights, but they were built back in the '70s when that was a popular custom mod, and before I realized that on a 1911, high-viz fixed sights are superior. My 1911s built since then all have fixed sights.
If you don't like the way the gun is shooting, or handles, for some reason, concentrate on fixing THAT. Otherwise, my advice to you would be LITFA (leave it alone). Here endeth the lesson.