Assuming you want comments, my notion is that it is is underexposed nearly a stop, it is fairly flat, and it could be cropped tighter. Things like the gap in the curtains could have been corrected first.
Look at your histogram. The data falls about 20% short of the right end, but that white shirt (being white) ought to be closer to the right end. Between 2/3 and 1 stop more exposure.
The lighting seems flat too. The light at camera right was slightly stronger, but little trace of the desired tonal gradients. Normally groups do require flat even lighting across the group, but with just two, it could have a bit more ommph.
The concept of two lights (for one subject) is main and fill. That means the strong main light high and wide, like maybe 45 degrees above and to one side of the subject (to make facial shadows, to show shape and curves, etc - not flat). Then the weaker fill light back by the camera (close to the camera lens axis), to light the shadows that the lens sees, without making more. A one stop ratio is generally good. With more than one subject, that does make the near subject brighter, but two are not a big problem if the main is not too close (not too close implies a larger umbrella or softbox).
FWIW, my lighting notions are at
45 degree Portrait Lighting Setup