Model needed for artistic photoshoot

Hi. I'm a semi-professional painter based in Vancouver. I'm looking to collaborate with someone on a project I'm doing. I'm doing an oil painting project where I'm showcasing all sorts of different types of feet. What I plan to do is take a number of photos of the model's feet in various angles with my camera, which I'll use later on as reference photos for my artwork. We can meetup in any public place around Vancouver, like a park to do the photoshoot. Should take max 15 minutes. Payment is $60 dollars. I've already completed a painting on male feet, so I'm looking for female models now. Also looking for middle aged models since I've already done paintings with younger models - looking to diversify a bit. You do not need to be a model / professional. See attached for an example of the type of painting I do :)