Awww, take heart, your horse can still be wonderful even if there is no Arenosa blood in her. *LOL*
Maybe I'm feeling a little inflammatory, but the Arenosa name is a farm name, and though many call it a bloodline, I'm not 100% sure I would call it that. Many of us have farm names, but that does not mean all of our horses are 100% perfect/wonderful, or even worthy of breeding.
I do think and believe that Audrey Barrett (Arenosa owner) was very clear in her goals and very ruthless in her culling of her own stock, and so she produced a much higher percentage of very beautiful ponies, so yes, to have horses from her breeding is usually a good thing, and there are a lot of wonderful and amazingly refined horses coming from that line. I am not talking all of them down, but will say that not every one I've seen has been "breathtaking", just a higher percentage than I've seen from other farm name "lines".
And, for the poor record keeping that was done in some cases, there may well be some horses that are related to the Arenosa horses that we will never know indeed were related. Also, not all beautiful horses are from Arenosa lines.
I've also seen many horses that have the same look, but come from quite separate breeding. Anyway, it is interesting to know your horse's background no matter what you do with them, but especially if you plan on breeding at any point.
Please, noone take offense, just stating an opinion/observation, and not criticizing anyone at all, and certainly not the late Ms. Barrett, for whom I have a great deal of admiration for. She had to be one of the most farsighted and ahead of her time horsewomen I've researched. Plus, she was very generous from what I've heard of her. Her wonderful horses will carry her legacy into generations far beyond, as she planned.
Liz M.