It's cute but it needs something. Maybe have mini games for playing, feeding, and grooming.
I do love being able to pet it though.

literalmente me lo pasé en menos de un minuto, y ni siquiera pensaba en hacer un speedrun xd

Cute and fun game! Try to add more depth into the game by making things that the fox doesn't like or a health bar that you have to keep up for the fox to live!

Simple but sweet. The graphics are very good and the animation is pretty solid.

Not too bad considering this is your first game. You can greatly expand on this with new features like alternate color palettes for the fox, new environments, and additional activities to make the simulation feel more authentic. This has the potential to be so much more if you put the effort in.