Red + Red = red.
Reba-Dodge x Pheonix will be chestnut, unless one of them is hiding something- which I highly doubt.
Satyra x Pheonix, I *think* will either be black or chestnut, I'm leaning more towards black. Unless she's a Smoky black or something crazy, I don't think you can expect more than a chestnut/bay/black foal of either of them.
It doesn't look like any of the horses pictured have any white pattern genes or pinto genes.
EDIT: on a side note, are you sure Pheonix isn't carrying dun? It's hard to tell from the picture.