guess the character

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Across
  1. 3. it occurs at the darkest stage of twilight
  2. 4. the biggest star in the sky
  3. 7. a bar of milk chocolate filled with nougat
  4. 8. the natural light of the day
  5. 10. partial shadow
  6. 13. a white butterfly with orange-tipped wings
  7. 14. the first appearance of light in the sky before sunrise
  8. 15. another name for a meteor
  9. 16. hyles lineata
  10. 19. a bright pink and yellow moth
  11. 21. a period of 24 consecutive hours
Down
  1. 1. you make me happy when skies are grey
  2. 2. butterfly bush
  3. 5. a butterfly with black wings, red bands, and white spots
  4. 6. Callimorpha dominula
  5. 9. polyommatus bellargus
  6. 11. it causes tides
  7. 12. the period of time before sunrise and after sunset
  8. 17. up above the world so high, like a diamond in the sky
  9. 18. a word similar to galaxy
  10. 20. the alignment of three or more celestial bodies