ART!

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Across
  1. 2. blue green purple/violet
  2. 3. red blue yellow
  3. 6. found in nature
  4. 8. view of land
  5. 10. no surface
  6. 13. no subject matter
  7. 14. live being
  8. 16. spectrum
  9. 17. found in paint
  10. 19. yellow and blue
Down
  1. 1. reflection of white light
  2. 4. actual appearance
  3. 5. yellow and red
  4. 7. purple/violet orange green
  5. 9. cool
  6. 11. not real
  7. 12. intermediate
  8. 14. coloring matter of medium
  9. 15. red yellow orange
  10. 18. warm