You went really big with your week 4 arch viz! I was wondering if anyone would go for a sci-fi environment or not. To preface, I would categorize this as a “environment” as opposed to an “arch viz” due to it not being a established in reality. Where kitchens, living rooms, contemporary industrial factories are real places and sci-fi environments aren’t. It may be semantics but it’s been something on my mind this past week.
Modeling, texturing, shading, and lighting a sci-fi scene like this is a huge undertaking for a week and you’ve put in a lot of work. On effort alone I’m giving you an A for this assignment. I like that you employed symmetry to get more bang for your buck but also broke that symmetry up with the tubes and couplings.
I think the lighting overall would benefit from more contrast. Right now everything is lit up fairly uniformly from…somewhere. But you have the ingredients fo much more interesting dramatic lighting. For one the blue light at the bottom should be key, producing a big gradient that spans top to bottom. Right now it’s too subtle. Then leave the shadows pretty dark for the small orange lights to play. That would also be a good opportunity for reflections to sparkle and add tons of value variety.
It looks to me like your scene isn’t actually a full cylinder and is instead open to the world on the side the camera sits. If that’s the case, I’d recommend adding a night time city HDRI to get that high contrast kind of lighting I’m suggesting overall.
These aren’t exactly the same setup as your scene but they’re in the direction I’m suggesting:


