I haven't forgotten about this thread, I promise. I had some last minute things pop up on Sunday and was unable to get to the 3rd drawing, but I just did the outline and plan to finish it tonight. I will most likely do the 4th picture some time this week as well.
I may just keep this thread open and if more people would like to post pictures of their horses, I'll get around to it as I have time.
Chevaliernr, Here is the drawing of your stunning horse. I thought this was the perfect subject with which to practice extreme shadows and highlights. I literally tried to draw exactly what I saw as people have advised me to do in the past. I didn't do any blending at all because quite frankly I think it turned out pretty good as is. However, if you would like me to blend it, I can certainly go back and do that. Anyway, enjoy!