October is great month in both the sense from festivals and climate’s point of view. Halloween is the best event to take pictures not just Halloween pictures. The moist cloudy phase of summer has moved and gave path to fresh days, clear air and bright blue skies. It starts with the wonderful colors of fall and the harvest, and it ends with a bang with Halloween — one of the year's greatest Happy Halloween Background Image opportunities. So conditions are perfect for picture lovers, professional photographers to get out there and take great pictures. You can see people with different masks and Halloween costumes. One can edit and convert it into halloween gif’s.
See : Halloween 2016 Date | Halloween History
Images taken from Spyder Onlines and if you want more halloween backgrounds, you can visit that site.