This game is adorable :)
I had a lot of fun exploring the house and interacting with the dogs. I did fall through the world a couple times picking up the dogs.
I wouldn't be too hard on yourself. I don't see many 3D games in jams, I've never really attempted one myself but I'm guessing its a lot of work. I can see how with a bit more time you could keep expanding the interaction between the player and the dogs, and making it quite a relaxing/uplifting game. Well done :)