Task 2- Space, light and texture of a location

MAKING WALLS : The quick way

Click the shape window with the little sun shine as an icon and underneath it select the icon with a square inside the circle.. Select the line tool and draw the shape of the wall, when you have done it, like you do with a line tool in I.e., Photoshop, you connect the last point with the first point.
A window will pop up asking if you want to connect the spline together, Click "Yes". 

Open the window next to the sunshine that looks like a blue rainbow and look for extrude in the modifier list (make sure your wall is still selected)... use the amount slider in the options and drag up and down to determine the height of your walls. 

Once you have done your walls you can convert to editable poly and change it about how ever you like, but adding segments, deleting segments or what ever your imagination wishes you to do. 

You can smooth it with chamfer and use the connect tool to add segments.