1. Da Capo 2. Hidden, can't make out. 3. Utena i think, with some colors changed. 4. The one with no pole. 5. Too dark. 6. Inuyasha? 7. Fate/stay night 8. Negima. 9. Yutaka from Lucky Star. 10. No idea about the orange one. 11. true tears. 12. Not sure.