IMHO it looks like your first grind was smeared. You need to look at the grinder attachment and make sure the blade is sharp and the plate is smooth. do not stuff with the blade. you should have a star for stuffing....place the meat in the freezer for a 1/2 hr before grinding.. it will help with the smear....You did a great job....
You'll be making sausages like the pro's with the right equipment....
Joe