Dungeon page should have a pic or two from actual dungeons as well as 1 or 2 random dungeon bosses. Life skill page should ofcourse have pics of each respected life skill being performed by a character in game and in game pics of each skill list for crafting so we can get a sense of how the crafting will work and what type of items will be needed for each life skill. Site should have a map page with a world map and a map of each zone (atleast the starter zones).
As for the background it could have a nice pic of a zone, maybe something exotic or a warm feeling (something inviting [not a volcano]). Have in-game characters wearing some different costumes on the top next to the LO logo. A nice comfortable layout would be nice. Nothing too hard on the eyes.
That's about all I have for now. If I think of anything I'll let you know.