Inspiration for nature-respecting rail supports and builds

Fellow pioneers, in my current save, I’m trying to leave trees, build around and along obstacles instead of on top of them (sky factories) and create builds that follow the flow of the surroundings.

I’m only reached trains and have not found a good style for me tracks that fits this philosophy.

Maybe you can leave some inspirational pictures of your rail supports and/or builds following that idea.

Thanks!