I’ve used SU Podium on and off for a few years, but can’t claim to be a master at it. I’ve seen others get much better results with it than I’ve ever done, but you can see the few examples I posted in my own thread with interiors here and here, plus exteriors here and what the “setup” was in SU to get sky, open water horizon and trees to reflect in the windows is shown here. The grass could be way better. I think Podium has a Make Fur feature for that, or Skatter certainly. I just didn’t get there.
I’ve only looked at Twin Motion. Correct me if I’m wrong, but it doesn’t do window reflections unless you specifically ask for it, and you have to select the portion of your model to do that for?