Art of League, Help me with feedback!

Hi! My name is SolarPWNage and I recently have gotten the courage to submit my private artwork to be public! I really love art and I was very inspired by some of the artwork Riot artist has done. So I made some of my imaginary champions come to life in the form of art and I would really appreciate if everyone or most can give me some sort of feedback. Your feedback can really help me improve as an artist and for me to know what I can do to improve in my art.

Thanks!

http://i.imgur.com/ktFzSDt.jpg[/img]

Her design was based off of Carthaginian soldiers, I didn't want to do a female version of Pantheon so I opted for my second favorite ancient Greek nation after Sparta, it was Carthage.

http://i.imgur.com/20AAsQ9.jpg[/img]

When I picked up my pencil, I thought what would Kayle be like if she did finally kill her sister? Her design is based off of Kayle's classic splash art and the helmet is a new addition, It covers her eyes as it shows that what she did and seen has seared her eyes forever.

http://i.imgur.com/OgYpFai.jpg[/img]

This man was kinda how I felt if there was the hero, Vigilante in Zaun, this would be him. My idea was he was the leader of the same Gang Vi and Ekko was in but everything fell apart when he disappeared.