Caporegime
Jackson and his team were professionals these lot look like amateurs. All the sets and costumes look like they belong on a film set and not in a living breathing world - if that makes sense.
This has been something thats been picked at in a number of these fantasy series. Basically it comes down to experience. Proper set designed and costume makers know how to make things like as they should. Weather worn, dirty and used. When everything looks too clean and pristine it ruins it. It looks like a film set rather than a living breathing world. HBO apparently have a lot of people who know their **** which is why things like GoT looks so believable most of the time.
Personally I think this looks a bit crap but I love LotR so I will give it a go. The waddling dwarves look ridiculous and they seem to have gone for the Hobbit aesthetic for the Dwarves in general which looks bad. Don't have much hope for it.