The leaves seem to be a bit too flat and uniform. What about half or rolled
ones? Yes, I know it's difficult, but that's what an eye expects. And some
leaves on the plates?
I would play with some fog/ground fog. In case of fog you will need very
soft shadows.
Some details would be nice, but you could try to stay in these grey and
brown colors - it's a nice atmosphere. Perhaps some lost toys getting rusty
or so...
