Create the image of the back of a truck box where 1 of the doors will simulate b

Create the image of the back of a truck box where 1 of the doors will simulate being open and the other closed.. Through the open door you can see the back of the white room with some cardboard boxes stacked on one side and where only the head of a little Martian sticks out from the right from inside the room, who is holding one of the edges with one of his hands and is looking out.