These are filled with a lot of wonk, actually. It's obvious that your skills in actual drawing are solid, so you should indulge a bit in the nature of the pixel cluster. Check out helm's ramblethread, cause I don't really have the time to edit of give good crits, but I'd like to! ' U ';;,

Anyways, this looks nice, but it could look a lot nicer @ n @;, I'll see what I can do later, ok?

The #1 thing that would need improvement is the hair. In almost every of your character, it looks creamy or blobby (for lack of a better term), undistinguishable from cloth, lacking to convey the idea of lightness. I'd also avoid the use of pure dark in hero's mouth or horse's eyes, personnally.

I also spot a perspective difference between the face and the head of your characters.
<-- an edit attempting to address that.