Well done mate ! So glad to see you followed my advise. It already looks so awesome. If I may be so bold as to give some comments here so you can improve your entry ?. I would love to see a still frame at 2x so I can help you out, cause there appears to be some wonkyness. not sure what, but the spaceship itself something is off ...

As for the background, the issue is that it doesn't loop. The last frame should go seamlessly into the first frame (which is not the same as it being the exact same frame) I think if you add 2 or 3 frames and keep moving the starfield to the right, then at the last frame, the bright white star that passes just beneath the ship should be right at the left edge of the image.