Both coonhounds and foxhounds are descended from the same stock, so the differences are hard to tell from a picture. Find yourself a UKC competition hunt near you and bring her around. Without papers, she won't be able to participate, but the events are free for spectators and you'll learn a lot. The people there will be glad to express an opinion. They may tease you a bit if you don't hunt her, but that's how I got started hunting so you never know...
Upcoming UKC events:
http://www.ukcdogs.com/Upcoming.nsf/Eve ... und&Type=MHelpful info for pet coonhound and foxhound owners:
coonhoundcompanions.com