I'm not big on the whole "oh the world is the same as it's perceived in the real world" thing but I can live with it as an artistic choice, though I feel it'd make more sense if the characters were also adapted into the artstyle of wherever they go rather than sticking out like sore thumbs. This does however present a problem with books which, you know, don't have artstyles to them. What then? Look for official illustrations and pick out the nicest?

I do think that having the divide between going into the game/move/whatever world and there being an actual "real" version of that world to be accessed later is rather forced and pointless, however. It feels like an attempt to extend game time by going "right, now you can go to that place again, but this time it's REAL AND DIFFERENT!" and it just feels like the oddest thing to hang in front of the players as bait to try and have them advance rather than an actual goal.