What an absolutely lovely GS. I think cropping the building and a bit from the left, would help. I also feel that the setting is very nice and the suggestions on focus could help. You could PS if you are good with that but for calendars, they seem to want more outside setting shots than studio.
If you would like anyone to take a stab at copy and work on your shot, I would be glad to give it a try. I always look for expression and you nailed it. So playing around with the background is fair game as far as I am concerned.