A big problem the prequels have aesthetically is the ‘cleanliness’ of environments. Temples that have existed for thousands of years feel like they have a cleaning crew of millions just to keep everything looking squeaky clean. A big part of the charm of Star Wars is the grimy, lived-in feel.
Here’s an attempt to add texture to the boring temple:
http://www.framecompare.com/image-compare/screenshotcomparison/YGD7NNNX