I agree with David, Sedona is quite built up, good shots are hard to find. David's suggestion of the Petrified Forest is excellent, then I would back track to Holbrook, take 77 south to 60 to Globe, you will cross the Salt River Canyon, very steep both and down and up, lot of pull offs with good views, from Globe west on 60, if you have time I would stop at the Boyce Thompson Arboretum, back to Phoenix.