[Mushi Uta ] Fan Art -- Anime Crossover Collection

It's Quiz Time!

For full length and other crossovers, click read
Can you recognize them all?!
For each picture, name its anime title, OP/ED(if applicable)

1.

2.

3.

 4.

 5.

 6.

 7.

 8.

9.

 10.

 11.

Artist: 椎名樹 (1~9)

Artist: 冬の流ying (10~11)

(I tried to maximize the first two as much as possible, if you would like to see a clearer version, let me know and i can direct you to the office source)