I personally don't see what you've done there to be an issue at all. It's a good job and the filling intervals have been nicely timed and consistent. A little more positive on areas where undercut is likely and you'll be there. After that it's just a case of repeating it over and over to get neater and neater.Cheers when I come to do a weld that's a actual part I start panicking and feel myself rushing so it doesn't go wrong I think I need to keep doing it until it becomes second nature maybe I'll tuck the mig away and start using the tig more