Definately day.
Backdrop - Commemorative baseball art.
Cityscape - City parks are the best. (Just my opinion.)
Scoreboard - Nothing. Skip the jombo tron. Just use stats or maybe even a hand operated scoreboard would be a nice contrast in a modern park.
Just in case, want to see fans in the stands. You'll probably include fans anyway as you've done in all your fantastic parks.
Thanks for asking for input. This is fun.
