Silhouettes are amazing, and I love the three deer (three is a magical number). I also love the light rays making it look early in the morning and giving the dusky feeling. Making the picture black and white was a good choice.
Lammas (or Lughnasadh) occurs in late July and early August. It marks the beginning of the harvest. It's the first of three harvest festivals and is usually associated with ripening grain. It heralds the coming of Autumn.