Yeah I updated mine too. And even though I referred to the changes as 'subtle', keep in mind that that's subjective too and it's unlikely to be invisible when you see the game in action as you suggest. To me and to the type of person who loves to tweak and fine-tune things with for example SweetFX, these differences are pretty significant. I myself for example understand some people's gripes with the original's 'piss filter', but at the same time I really felt the original had a very fine-tuned look that is not easy to achieve and I actually saw this screw-up coming. Hearing about all the outsourcing of the porting and the supposed 'lighting system' overhauls, I wasn't too optimistic about whether the look was going to be improved. I hoped that perhaps it was going to be better shadowing and higher quality shaders but instead they altered the style of the visuals in a way that doesn't jive with me.
I didn't say it was invisible, I said it looked fine as you can see as you move through the environment that the section looks like that because of the yellow light radiating from the 4 lamps in close proximity to Pritchard are illuminating him in a way that makes him look...yellowish. I've uploaded some shots that display what I'm talking about with the way the new lighting system works:
You can see how the lamp is acting as a light source in this shot because you can see the yellow light radiating from it bleeding through the red tinted window.
Here's the Pritchard shot from afar to demonstrate what I was talking about with the lamps:
And here's his room while standing at different spots, demonstrating how where you're standing in relation to a light source can impact the room's illumination, and thus how when you're looking at a still screen shot vs actually playing the game this can give a false impression that the game looks poor with the new lighting system:
Also, the ailasing in these shots look awful, but it's not nearly as bad when I'm playing it because I'm downsampling the shots from 2560x1440 to a 1920x1080 screen for ~1.75x SSAA. Also they look even worse because steam seems to be resizing them again to 2048x1152 for whatever reason. I tried ablod with FRAPS shots, but Ablod's hasn't been working for me lately at all so =\