Thank you very much for this reply, I shall keep your advice in mind for my future pieces.

Pretty good as far as the drawing goes.  However, the coloring needs a pretty good deal of work.  Look at some of the really good pieces on this site (for instance browse through the well known guys or look at the week's top pixel art) and study their choices of color and how they use them.  For one, you need contrasting colors in order to make a noticeable difference and so that you can do more with less.

Color choices are definitely a strong indicator of your style, and so it will take a while to find the method that works for you.  However, well chosen and well place colors will make everything considerably better.  You may even considering messing with this sprite over and over until you find something that suits you.

Keep up the good work

lol, It does seem to give that illusion unfortunately, maybe its due to the exagerated shoulder padding...

The knight has no neck.

Thank you! fixed it (for helping with transparency)

I made you two little tutorials
One for .gif (which only the full and trial version can save)
and one for .png. I think they're all clear but tell me if I made any mistakes

Alternatively, upload your image at iaza.com and edit it there (look for a Transparent option after uploading), save to your disk and upload at PJ.