Facts are models of reality and we represent objects, their relatedness, states of affairs and facts as pictures.
Like the structure of states of affairs, pictures have structure called pictorial form; pictorial form is how the elements of the picture are related to each other.
A picture reaches and becomes overlaid and attached to reality.
Every picture is logical.
A picture is a possible situation in logical space and represents states of affair. The picture may agree or disagree with reality (i.e. be true or false). It is the pictorial form, how well the elements of the picture agree with the objects of states of affairs, that determine whether a picture is true or false.