I really like the vector and the colors here, the softness of it all, but I think more could have been done with the the background (although I like the calendar patterns)... just, I don't know, a more subtle way of fitting in the idea of calendars and walling once a month. Just, compared to the lovely vector, I think the background is maybe a little too simple.
However, it did turn out really nice. Good luck in the challenge!