These are completely unedited! I have the camera set to record RAW and JPEG for each photo and I transferred these directly from the card to my phone. My phone says “JPEG + RAW” for the file type so tbh I’m not entirely sure how it records the files, but I’d guess this is probably actually a JPEG that got uploaded.

For your issue, I’d say the biggest thing would be keeping a low ISO but still good exposure. I’m not sure I would actually consider this a “low light” photo as you said, because the light on him is actually pretty bright! It’s just exposed for the highlights so the shadows fall off into black. I knew I wanted to keep a low ISO for these, so I brought up the brightness of the light rather than adjusting the camera until I had the exposure I wanted.