Look like good dogs mate, we don't have any blue de gascoin in Australia, would love to see how they go. I am surprised none of the Vendeen coat was passed onto your bitch.
I have a Vendeen
and have just put it over my Basset X Beagle
All the Bassets over here are deformed things so I thought put a bit of Beagle into them to give them a bit of leg, and the Vendeen's are not a bad build for a Basset.
Both dogs are going well on Foxes in thick cover, so hopefully this cross should click well.