Locution vs. Constative and Performative vs. Perlocution

Locution vs. Constative
Locution is the form, not a communicative statement to the audience. If someone was discussing the light and dark areas on the scene, the aesthetics, and how it guides the eye, without discussing what is going on, that would be a locutionary examination.
The constative is the element as a descriptive statement, without implication. For example, if someone sees a scene from a movie, but did not know what the movie was about or how the scene functioned to further the plot, the constative would be their description of the scene.

Performative vs. Perlocution
The Perlocution is the audience's psychological reaction to the element.
The Explicit Performative Function is the way a narrative element changes the audience's relationship with the story.

When I am making a breakdown of the illocution into the perlocution through the locution and the constative into a performative with a primitive, I find it useful to look at existing narrative forms that I find emblematic. I often look at the breakdown of the dolly-zoom shot from Vertigo, I think I find it helpful because I knew the shot before I watched the movie, so the constative form is the one I am most familiar with and distinct from my understanding of the movie.

Constative + Primitive = Performative
Locution + Primitive ≠ Performative