TheoOdo said:

One of the problems I've always had with RotJ is Endor. It was shot in a national park, and it kinda' shows. There doesn't seem to be anything threatening about it as an environment. Even Luke's old home, Tatooine, has the potential to be more threatening. Although it looks quite creepy at the landing platform with Vader at night, the rest of the time it seems as though the rebels are a hiking team rather than people infiltrating a strange world.

There must be some way to make it seem like the kind of exotic environment we're used to seeing in Star Wars - maybe a fog effect could be used or a shot of a very distant canopy, emphasising unearthly massive trees, which then pans down to show the rebels.

Any other ideas?

Good call, many of the shots are either static or matte paintings filling out the surrounding trees in a shot.

Maybe some extra photoshop mattes could be added to some of the trees/foliage to make it look a bit more exotic.

Add twisted vines wrapped round tree trunks, low dangling vines and maybe big exotic flowers and plants. Possibly pinch some from Felucia and Avatar?

Me being a Brit, thought that the Giant Red-woods were Alien looking because over here we dont have such forrests. But, now with so much Hi-def wildlife programmes on, it does now look a bit "Ordinary". Especially with many short Fan-films being filmed there, kinda cheapens it.