Just putting in my two cents here (and agreeing with the above posters that she needs to be tested for frame), I don't think she should be bred. I know that's not what you want to hear, but based on her conformation I don't think her reproducing is the best idea. She is sickle hocked (and looks moreso in the first two pictures you posted) and has a long, weak back. To me, it seems like you are breeding just because you can and are focusing on color, which should be the last of your worries. If you do decide to go on with the breeding, please take the time to find a WELL built stallion that will compliment her faults, aka a stallion with a nice set of legs and a short, stocky back being the biggest factors (in my eyes anyways), even if that stallion is a boring ole sorrel or bay.
Red Money Maker (Red) - 2004 Sorrel QH Gelding