Art puzzle

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Across
  1. 4. Architecture design drawing type
  2. 7. To make it realistic
  3. 8. The result of different pressures on the pencil
Down
  1. 1. Sizes of certain things compared to others
  2. 2. to quickly draw something (Rough)
  3. 3. Drawing of yourself
  4. 5. The affect of a light source and an object
  5. 6. What we drew in 1 minute