Super short, eerie and definitely has a potential to become something even better - not bad.
The atmosphere and visual style of this particular game somehow made me uncomfortable. The unknown nature of the dog and the character's situation really immersed me, for a short period of time. I think, given more context and gameplay time, this can be it, really spooky, weird horror game. Although, for what it is, you did a good job.
Best of luck with the future games! 5/5 for letting that dog go, it looked creepy!