The vet did say about internal infections, and said that it didn't look deep enough to worry about it right now, but obviously if it starts to feel warm/swell up/leak etc. to go back straight away, so I am on the look out for an internal infection.
I did get a photo of her today, it still looks quite bad, but it is a lot better looking than Thursday night:
We're pretty sure the 'lumps' around the wound are just swelling, as they have started to go down.