Can you guys please listen to some of my raps on youtube and give HONEST and helpful feedback?

I am a 15 year old aspiring rapper and I was wondering if some of you
would check out my raps on youtube. I want honest feedback and real
criticism not just hate. I have been rapping since I was 10 on and off
again but have gotten really serious about it in the past 3 months.
Here are some of my links to my raps. If you like them please
subscribe, comment, and like them. Thank You.

Moment 4 Life:
http://www.youtube.com/watch?v=z9gmse8Tsycfeature=related
2011 Till Infinity:
http://www.youtube.com/watch?v=euS9Fqmtijofeature=related
Thiefs Theme:
http://www.youtube.com/watch?v=zok-YNIQYU8feature=related
Lose Yourself:
http://www.youtube.com/watch?v=a7svBPEP_Swfeature=related
Dead Presidents: http://www.youtube.com/watch?v=f8VO0SsMv-0
Blame Game: http://www.youtube.com/watch?v=EEWgNh2555Ufeature=related

Aston Martin
Music:http://www.youtube.com/watch?v=2Of5-xDZEbMfeature=related
So Appalled: http://www.youtube.com/watch?v=IdvczFGb1us
Devil in a New Dress: http://www.youtube.com/watch?v=s21aFFDTMYw
Lights Please: http://www.youtube.com/watch?v=-ErcywbmMZ4
I think these are my best ones but I have 16 videos in all on my
channel. If yahoo isnt letting you press on the links please copy and
paste the URLs.