The result is quite satisfying. The raw images show very low noise, which could be eliminated even further with the pre-processing in Pixinsight. Some dark structures are also clearly visible, but might be more prominent with a prolonged total integration time and better conditions.
Note that some of the stars exhibit a substantial coma when examining the edges of the image, which is due to poor collimation. Obviously this needs to be improved.
Apart from that the stars are satisfactory. Possibly a somewhat overexposed images have been taken, since many bright stars are overwhelmingly white.