Neh man, dont make a big deal of the coloring..  
I made it in class and I was like 92% tired.  
I was out of red pen, so i took another one which was more darker, and it ruin all the shading of the drawing.  
i had limited colors..  
i like had, black\red\blue pens and a green\yellow\orange color highlights.  
I could make a better work if I knew at first I wouldnt add it such an effort.  
I was tried, and I not often color my doodles.  
but thanks!

This drawing is too good for lined paper! Also, the colors for this piece are good but that’s one thing I notice alot of young and newer artist do that’s a mistake or atleast heading in the wrong direction is too color everything they draw, it reminds me of elementary school, it works for this one, not saying anything bad about this , but the advice I have is you can still color your drawings but the thing you should be focusing on is line and form and all that other stuff, really like the drawing though.

will work on another once i get new colorful pens :T

Woah that’s freaky.