My crazy Drawing book (anime only!!)

I'm an 11 yr old who loves to draw i would like it if you would help me with my skills by commenting on things I need to improve on thank you

But ya' know the arms on all of my drawings you may want to kill with fire
Just sayin...

List of characters

Chapter 1 Yui from Angel beats

Chapter 2 Ciel from kuroshitsuji/black butler

Chapter 3 Shiro from No game no life

Chapter 4 Armin Arlet from Shingeki no Kyojin / AOT

Chapter 5 Rena Ryugu

Chapter 6 Kaori Miyazono

Chapter 7 Yuno Gasai

Chapter 8 Harhi Fujioka

And more to come...

Hahaha this sounds like an advertisement, but please do help me with your tips