It is beige...I think the ceiling should be beige. There is a sofa here, with blue upholstery, oddly like the one in my student apartment in college. There's a floor lamp here too.
It's dark, with pine trees.
Relatively narrow, but easily followed and clearly visible.
It's a natural, clear lake. It's big enough that the other side isn't visible...so maybe it's the sea.
It's a largish chalice, made out of some sort of attractive dark red clay with a clear glaze.
The key is large, old-fashioned, and made out of brass. I think it unlocks a large door, embedded in a tree.