I also wasn't been impressed with this gameplay looks. First, because ND are legendary, and what they do typically do is a benchmark of what's passible on the platform. So there's not only huge expectations for "just" next UC game, but also what PS4 can do. And those expectation were so high, I think it's true they couldn't be fullfilled.
Second, more important part - UC4 may me far less impressive that number of polygons and texture quality can tell, because it's more realistic. When you compare color palette of UC3 and UC4, UC3 is much more vivid, cartoon like style with strong green colors. UC4 is much more toned down to be realistic, but this also means its not as impressive, because color doesn't pop up from screen, making it subjectivly less details (you need to focus to see finer detail). It seems that UC4 carry on with dark gritty style of Last of Us, which may not be so great in happy crazy game that UC was up to this point.
That's no question that UC looks great technically, but artistic part is not so punchy as previous games. That's not to say I won't enjoy it, because i will :D







