I agree with Macabre, she's not too old if she isn't a maiden, heck my friend bred her 20 year old mare as a maiden, and she did wonderful. But I see a very weak top line, pretty straight gaskins, fairly upright pasterns, that I would not want to pass onto a foal, I think that buying a young foal instead may be a better idea. What do you want to do with the foal? What are your goals in having one, is it just for you, do you want to sell it, are you just wanting to breed because you want a foal out of your mare? These are all things to think about. If you do decide to breed, find a stallion with a better top line, shorter back, longer pasterns, more angle to his gaskins, and a bigger butt. Good luck with your hunt.