Thanks you all!
jaydee~ Your advice matters to me! However... it actually is a photo, not a drawing. I turned it black and white to post on here so that I can compare. I can post the colored version if you like.
I should try to draw from real life, without any photo at all ("still life"). It would be good practice for me. What a really want is to draw from my own imagination at times. You get a picture in your head and just want to transfer it to paper. Haven't gotten there, yet!
**I must not forget to thank the difficult horses, who made my life miserable, but who were better teachers than the well-behaved school horses who raised no problems.**