I can see why the potatoes came third! those that came first judged themselves in my book!
Looking at the tray I think if you had swapped the potatoes from these two classes you may have won the potatoes as well without reducing the quality of the tray
Was each veg on the tray given points then added up to see the top score?.
Beautiful beetroot would have been nice to have seen one cut!
Looks as if you had a good crop of onions this year six nice ones there!