We went to Prarie Creek Park in Richardson for cheer pictures this year. The day we were there, 4 schools were there taking pictures. The area was very pretty...a little waterfall area, lots of rocks. Before we left on that day, 2 brides showed up taking pictures.
Directions are to go South on 75 and exit Campbell Road. Go West on Campbell and turn Right on Prairie Creek Dr. Stay on the that road over a mile or so to get to the prettiest part.
Also, There are fountains and pretty areas at the Shops of Legacy. The South side has a lake and big fountain. THe north side has a traffic circle with a fountain.