First Attempt at Basic Level Layout Creation!

In my Game Design class, my professor wanted us to make a simple level layout. I decided to make a simple house for one occupant. This level would be the beginning of the game. The protagonist would wake up to a loud knocking on their door and due to their paranoid nature, would end up searching the house for the keys to their locked doors. The player would have to search the bathroom to get through the bedroom, then the hallway to access the office, where the rest of the keys would be found. Here there would be a choice. In the room marked "???" would be a secret path for the player, or they could simply go answer the door.