I don’t see any shadows, and it’s kinda bright. Maybe try turning on Future/Shadow Map lighting and possibly tweaking the lighting properties.
Also, everything just looks like a color bomb. There’s green and orange on the ceiling, the gradients aren’t pleasing, it’s just like all over the place. I think you should focus on calmer colors and to make things less “colorful”
To be completely honest, before adding anything else into the Juice Bar I’d suggest cleaning some things up. Now it is hard to see the true potential of this place from that angle and screenshot quality. I see a lot of unnecessary parts that really are making it look clustered and will cause a higher part count which can lead to lag for lower quality laptops and computers.
The lighting is very low-poly style and should have more dynamic shadowing as the others have suggested already. The color scheme is very mixed up and can be unappealing to the eye, it should be aesthetically pleasing. The flooring textures seem completely out of place, they pop way more than they should and have a very low-end quality to them.
This is some constructive criticism from one builder to another, I’ve worked in a lot of R.P. based groups, and let me tell you, over time I’ve heard those same tips. Just keep up the work and you’ll master the minuet details such as that.