Hi. If you need to represent a standard architectural drawing this would be a top view (a section at 1.00m) drawing of the current level. The section lines (black and green ones) should be thick and solid. Visible lines (not represented in your drawing) are solid and thin. Hidden lines (blue one) and unseen lines (yellow) should be thin and dashed.
But if you dont care about the convention, then your drawing is correct.