I took a look at the screenshots of this 35mm scan of Jurassic Park and all I can say is great job!
I saw a 35mm print of Jurassic Park at the famous Vista Theater near Sunset Blvd back in 2012 and the scan backs up exactly what I remember. I had watched the DVD for so many years so when I saw the screening of the print at the Vista, I was surprised at how dark the T-Rex and tree scenes with Alan and the veggie dinosaurs was. As as I was watching it though it felt appropriately dark. Most movies night/dark scenes nowadays are way too bright and look like they are being lit by a supermoon. They usually have a large bright light on set on a crane that illuminates everything in a light-bluish hue to replicate what we perceive as moonlight. Jurassic Park is lit enough that you can still see what’s going on, but it feels like it’s night.
The Vista was screening the movie as part of a series of midnight showings of classic films. It was actually the last film ever projected on 35mm at the Vista. The very next day they installed a digital projector.