After going on a 10-minute journey through the horror infested lifestyle that this cleaner leads I can safely say that you have a functioning product. Minus a strange choice of words in the control screen "Shift: Walk Faster" and a few animation bugs revolving around the monsters walk cycle, you've done a really fantastic job.
The music and atmosphere wasn't anything too spectacular but was serviceable for the story. All in all, I'd say for your next game try and challenge yourself a bit more, you've shown plenty of potential and I think you could move beyond just horror mazes with jumpscares in-between.
For slightly more in-depth ramblings watch the video.