Hugo, I know the frustrationns and hope you do get the better quality photo but all the same, when you consider having to act quickly, grab what is to hand, maybe light, etc. etc. I think it's a great picture - I'd have been pleased to have captured it at all!
I can only think of maybe seeing a badger once. I was dropping down from Junction back to Pydew, towards the green and I saw an animal whose gait was certainly not fox or dog. On a later in life HNC in buisiness IT, I did learn from a tutor that there were groups of badgers in Pydew but I'm not sure exactly where and if I did know I'd probably follow his caution with giving exact locations...
Foxes, I should have taken my own pics . if I had camera then and thought about it then... I have seen one as "bold as brass" in the bottom of Skerrryvore - I got within say 10ft.