Good start.
Well, like the others already said, if this really is your first Flash-movie, be very proud of it, it really shows potential!
For the graphics I think you should stick to one style for a piece like this. Meaning, either draw and scan everything, or draw everything with crisp, straight lines in Flash or Illustrator instead of using straight lines for the walls and crude lines for (e.g.) the bed. Maybe that's just personal, but it could be of some advice to you!