Is Willow a pure basset hound? Or is she mixed with beagle or another hound?

Willow is on the left of pictures 2 and 3. She was abandoned and rescued and we’ve had her for four months now. She’s a little over a year old now we think. At first we were convinced she had some cattle dog in her because of her thick legs/paws. Her ears aren’t as long, but she has the loose skin and wrinkles.

I’m curious what you think!