I think they look too modern, and newer in tech than the oot.
When the designs should look older than the other movies not newer.
Also bringing back the Joe Johnston, Ralph Mcquarrie designs would have helped.
Again they look too clean and sterile and not lived in or universe once used like the oot. Even the props and costumes in the oot had meticulous aging done to them to give them a real world feel, also real sets and models and locations/stuntwork instead of cgi helps too.