In the first picture, the space felt unlimited and larger than it actually is, unlike mine. Is this a result of intentional camera and editing works and how can I get as close to that at possible? Thank you.
Add some intricate details to make the room more interesting, try adding just a tad of DepthOfField to help the viewer focus on the main scene, and maybe light the walls with slight variation. Objects within the scene could also use a little variety, some objects feel a bit off because they’re so similar - also consider altering the lengths of the pipes.