PetPals | App for Pet Owners & Sitters

Another fun concept app - PetPals! A bit of a Tinder vibe, pet owners seek out local pet sitters for their four-legged friends. Sitters are validated through user reviews, but I might adjust this to a ranking against other sitters - any thoughts?

I'm learning UI/UX as I go, so I would LOVE some critiques/constructive feedback on how I can improve these designs - thanks Dribbble team!