I've only ever done one color work, but my amateur advice is to go lighter on the pencil to start, then go a little darker to shade in as needed. Also try to avoid lifting the pencil in general when coloring in so that it looks smoother. @wanderways would know better than me, though.
Also, try...
Yeah, anyone can draw. The first thing you have to do is get over your lack of confidence. It happens to everyone, and will keep happening. It's just the hurdle you go through.
Thanks, that was really informative! I know that I suck with anatomy and I honestly didn't do any line-drawing, just sloppy freehand. I've had people try to show me work similar to the one you did on the right with the triangles and whatnot, but it is immensely more helpful to see it on your own...
I know that I'm not even close to anything professional, but for the first time in a long, long time I decided to draw something today, and I guess I felt that it'd be okay to share it. I know that there are much more talented people here, but I hope that someone likes this.