Compositionally, this has a lot of tension and is very unbalanced. The so-called rule of thirds has to be balanced against the eye direction of the subject; the long side of the frame, and the short side of the frame; and the subject matter. This does not work well, with a personm palced off to the short side of the frame, with awkward eye direction (the line of gaze, as it is often referred to).
You've handled a low-key lighting setup pretty well, but perhaps add a slight bit of brightening to it, maybe 1/4 to 4/10 of an EV.