Keep in mind that these are suggestions and I am up to shooting at other locations you have in mind! I currently go to college in Flagstaff, Arizona, but frequently visit Tucson and work in Tucson on breaks.
Tucson:
Agua Caliente Park
Downtown (Barrio)
Babad Doag lookout point on Mount Lemmon
Lakeside Park
U of A
Reid Park & Reid Park Rose Garden
Botanical Gardens
Flagstaff:
Buffalo Park
Aspen Corner
Old Main on campus
Downtown Flagstaff