The girl is reading ... the tree.
under
There's an armchair ... the window.
next to
There are a lot of books ... the shelf.
on
A woman is standing ... the sea.
in front of
There's a bookshelf ... two beds.
between
The kitten is sitting ... the box
in
An alien is hiding ... the rock.
behind
There's lovely garden ... of the house.
outside
Welcome. Come ... the house.
inside
There are nice flowers ...
on the left