Question for the color gurus about my girl

So the ad for my mare said she was a red dun paint. I've been lurking the forums trying to gain knowledge for some time now, but not 100% positive, so thought I'd let the color gurus take a stab at it. I think she's bay with frame, but are there other factors at play? (No leg barring or dorsal stripe, so I don't think dun was correct...but with no papers and owners unable to provide name of sire and dam, it's a guess right now).

Spring:
http://www.horseforum.com/members/33...mag0115-36901/

Winter:
http://www.horseforum.com/members/33...mg-1627-36900/

And her lovely face (and her little "punk bangs" for a forelock):
http://www.horseforum.com/members/33...mg-1619-36899/

And I just realized I clicked the WRONG FORUM to post this. Any idea how to move it? Still learning what I'm doing here. :)

If you haven't figured it out yet.....

Go to "Horse Forums" > then scroll down and click on "Horse Colors And Genetics"> then click "New Thread" and there you go :)

Im not a color expert but she is beautiful!!!

I do think she's a bay.