Hello Lily! ^^ Thank you for submitting your homework today. Kindly take note of the corrections that I made. Thank you! ^^

Lily: my favorite toy is 'secret diary'
Correct: My favorite toy is my secret diary.
- Use a capital letter when you begin you sentence and always end it with a period.

I have two diaries. - Correct

Lily: One is an angel and one is cute character pictures.
Correct: One is an angel and the other one is with cute character pictures.

Lily:I have many things in diaries. stamps, note books and secret pens. I love this.
Correct: I have many things in my diaries like stamps, notebooks and secret pens. I love them all.