Which technique of creating emphasis is in primary use in this painting ?

Creating perspective by leading elements

Explanation:

The painting includes the leading element of the road. The road is used to present the converging lines. These lines are used to point towards the horizon and create an emphasis on the element between them or their end.

Here, the lines of the road lead the view of the observer to the emphasis which the light getting through the clouds and hitting the horizon. The perspective of the road that points towards it creates the emphasis of the art piece.

right of the table i believe

i'm not sure i completely understand your question, but i will do my best.

i think the answer you are looking for is sequence. (see below)

a repeated melodic fragment would be best defined as repetition, while repeated chords (different or the same) could be a chord progression. however, you then mentioned the chord and melodic fragment beginning on higher or lower pitches, in that case, the answer could be best defined as a sequence. the definition of a sequence is as follows: "the restatement of a motif or longer melodic (or harmonic) passage at a higher or lower pitch in the same voice."

let me know if this !