M33 - Triangulum Galaxy

At 100% size, the image is a complete mess. What did you do to it?

A bit of everything, I suppose. I tried to stretch the arms as much as possible to make them somewhat visible. I agree it doesn't look great at 100% size—I also reduced the photo size by about 30%, so the originals aren't very large.

I hope the shooting was done in RAW, not JPEG?

The shooting was done in RAW, and an issue arose somewhere during the noise reduction stage of processing.

Good potential, but more signal accumulation is needed, and a bit less zeal with the noise reduction.

Thank you, I think this is related—the more high-quality integration you have, the less noise reduction is needed. In this case, the signal was definitely a bit too weak.