
Step 1: Analyzing the scene composition.
- The examination hall should feature rows of desks and chairs.
- Students should be depicted seated and engaged in writing their exams.
- An invigilator should be present, supervising the students.
Step 2: Creating depth and perspective.
- Utilize linear perspective to add depth to the hall.
- Draw desks in rows, reducing in size as they recede into the background to maintain perspective.
Step 3: Incorporating environmental details.
- Add elements such as windows, doors, ceiling fans, and a wall clock to enhance realism.
- Illustrate students in varied postures, including writing, thinking, or reviewing their answer sheets.
Step 4: Enhancing realism.
- Apply shading techniques to add volume to the desks, chairs, and architectural elements.
- Maintain accurate proportions for students and objects to ensure a realistic composition.


Let $ P(x_1, y_1) $ and $ Q(x_2, y_2) $ be two distinct points on the ellipse $$ \frac{x^2}{9} + \frac{y^2}{4} = 1 $$ such that $ y_1 > 0 $, and $ y_2 > 0 $. Let $ C $ denote the circle $ x^2 + y^2 = 9 $, and $ M $ be the point $ (3, 0) $. Suppose the line $ x = x_1 $ intersects $ C $ at $ R $, and the line $ x = x_2 $ intersects $ C $ at $ S $, such that the $ y $-coordinates of $ R $ and $ S $ are positive. Let $ \angle ROM = \frac{\pi}{6} $ and $ \angle SOM = \frac{\pi}{3} $, where $ O $ denotes the origin $ (0, 0) $. Let $ |XY| $ denote the length of the line segment $ XY $. Then which of the following statements is (are) TRUE?