My Warrior sketch in colored pencil...

Honestly that's horrible. I'm not trying to be mean though and I will try to offer constructive criticism.

- To start with, the shape outlines are all warped. His head is about 3 times as long as it is wide. His neck is about half as wide as his head. The hair just looks like you went crazy around the shape of his face and didn't add any type of detailing to show the real shape of his hair flowing.
- The actual details are not accurate at all. His nose doesn't look anything like a nose. All of his teeth are different sizes and seem very very crowded. And apparently he has eyes unlike anyone else's in the world. Unless he has some colored contacts that created a white ring inside a purple ring, then those eyes are just not accurate. The white should be colored in to the color of Warrior's eyes. The only white part should be the eyeball.
- The color pencil coloring is very bland. The colors are super dull and the shading is less than desirable.

Maybe you weren't trying to go for realism, but this type of drawing just isn't for me. I think if you worked on proportions and learning shading techniques, you would see a vast improvement in your work. Don't stop drawing though just because I gave you a hard critique. The more you try the more you will improve.