This is NOT a grumpy reply...just so you know starting out.
I can understanding posting a photo of a horse for critique if you are seriously considering it and want experienced people's opinion. Maybe they will see something that you miss or could be a problem. This can be helpful for people who may not have a lot of experience themselves.
Personally I would not post photos of my horses for this purpose because I already either smartly or stupidly bought them and, well, there I am.
If you are going to be flipping them for a profit, then you need to be educated enough to know what you are looking at and if that horse is marketable, and you need the skills to retrain problems if needed. I'd get that phone problem worked out because you may need to send photos of your sale horses to potential buyers. You need to set yourself up as a business person.
I wish you the best.
If you ever find yourself in a fair fight, it's because your tactics suck. ~ Marine 1SGT J. Reifinger