Come back as often as you like. I'm glad you take advice with the positive intent of those who offer it. If you're planning on making requests in the forum, do revise your avatar though. People are much more likely to help others who seem to making an effort or whose existing works impress them. Keep at it.

Thanks for the advice, I was not expecting constructive criticism! I actually uploaded the image to use as an avatar so I could make a request on the forums, but I may well come back to this site more often.

208 colors.

Looks like a soft gradient tool was used 

Cool

You gotta up the contrast and lower the color count. You can't see until you zoom in completely that there are a dozen or so shades of brown in the frame, all of which read as the same color.