For a GoTo dob image, it's brilliant! Very blue but that is something to play with processing
One of the difficulties in your set up is deciding between shorter (15 second) or longer (30 second) images. You'll get nicer looking stars with shorter exposures as there is going to be less of a build of up tracking errors and field rotation BUT you'll get more noise and lose some of the deeper parts of the image.
Very nice for a beginning