First I would remove the lamp and the table..too small. Then make sure the chairs are centered on the wall…move plant if you need that space.

Two floor lamps…one for each chair, something like this with a tray.

Horizontal art hung right in the center of the wall and not too high over chairs. Ignore light switches.

I like Judy's feedback. An oversized piece of art would work well. Or you could try something with mirror(s). A smoked mirror wall, an oversized leaning wall mirror, or a gallery of different mirrors could bring a little drama and unexpected element to the space.

Seems like you could hang art above each chair, above fan switch

If one piece can't be large enough..how about a triptych?

Similar to JudyG's suggestion, perhaps put only one floor lamp on the left (between the plant and the chair). Remove the smaller lamp you have on the table. Then center a horizontal piece of art above the two chairs and table. The height from the floor lamp will keep the wall in that corner from looking too empty.