For 1000 frames, that image is still very dark. Have you stretched the image at all to make it brighter?? Or you could fiddle around with the capture settings to make it look a little brighter and with a bit more contrast. Also, your focus is a little soft. Other than that, it's a very good shot
.
If you've got a barlow, try sticking that in the image train...you'll get a nice looking Saturn then