Zombies ate my neighbors! Miranda & Michael

1. Yes because we can see the foreground being where the two zombies are in the background shopping to bring home bananas, and other various fruit to their house to lure in humans, the middle ground being where our main character is, Julie, where we see the little ghosties and another zombis, and of course the background being the freezer of the grocery mart, too bad zombies only eat brains!
2. To create depth in the objects. people etc, there is shading (or in pixel land; dithering!) If you look at our little zombie in the front we can see his legs (pants whatever) are dithered! The same goes for the little ghosties, and the walls.
3. Throughout the image, we of course can point out multiple lines that make up the floor, wall, etc, vertical and horizontal. The main shape we seem to have in the image would be squares.  As for the size, the walls are a little bit too short for the people, but it still looks fine. Many colors are involved in the image, the most eye catching seems to be the green, down where the food is.