I love the idea about playing as a guiding dog.
Gameplay is simple but well done. Movement is smooth and navigating between obstacles was fun for a while.
The fact that dog owner moves exactly where dog does instantly, felt a little bit "unnatural". Some small delay or even momentum might make it more "interesting", but maybe it would make the game unplayable.
On higher speed, I was experiencing some motion sickness (I had to focus my eyesight to dog and his owner and feel the obstacles only in peripheral sight) , but it might be subjective for each palyer.
Visually - I like the low poly models and pastel color pallete. Music is chosen well.
Overall great job!