I included the background in the crop, because it was dim in that area. The only light is mostly on the man and fruits, just a single bulb. And notice dark shadows on the man too, because the light is above, slightly in front of him.
The speed here is 1/80, f/1.7 at ISO 400, so that's still low light, IMHO.
Your first image below is :
iso 200, 20mm, f2.5, 1/160sec
Assuming exposure on both are correct, then mine is not as well lit as yours, based your settings above.
But assuming mine is better lit than yours, then it's not a lighting issue again, but rather an exposure issue on your part.
Here is another one just taken a few minutes ago, all standard settings, Noise filter and reduction are both off, f/1.7, ISO 400. Even more low light, handheld at 1/8 (the joys of having IBIS, and my no. 1 reason for using a Pen for my MF lenses, even over a Leica M9, YMMV).
At any rate, who prints 100% crops anyway ? Have fun and good luck.
To be explicit, the parts to the right side of the remote option button are in shadows, not lit, near the top of this crop.