The pets and backgrounds look exactly like what I was expecting, but I wasn't expecting to see such a variety of locations and games. You start out with only one area available, so there's really not much to it there. But once you unlock the other worlds (which doesn't take long), you'll get to see all the changes in backgrounds. The Winter world even features a frozen river. Small details like that you might overlook, but overall, they show beautiful scenes for kids. The characters are completely adorable too. There are so many different species and even more different pets in those species. There are 20 pets, 120 accessories, 34 different playsets, and 2 toys for you to unlock. All of these things are quite unique in appearance, especially the accessories!
The background music sounds about like most children's games. The games do have different music, which is nice. Sometimes it speeds up or slows down depending on what's going on it the game. Overall, the music aided the mini-games, so I'd recommend leaving it on. The pets make the cutest noises too.