Interpretations of crop circles according to the Mayan calendar 2012 - 2014
2014
Crop circle from 1.06.2014 - Hod Hill, England

Crop circle from 23rd August 2013 at Cooks Plantation, nr. Beckhampton, Wiltshire, UK
More images from this crop circle are published here:
http://cropcirclesdatabase.com/20130823UKwb

Crop circle from August 12, 2013:
Crystal Tone 12 - the Tone of Cooperation
This crop circle was reported on 12th August  2013 at Besford, Worcestershire, UK. Image and diagram are published here:

Crop circle from 10th August 2013 at Chute Causeway, Wiltshire, UK
Crop circle from 13th August 2013 Hackpen Hill, Wiltshire, UK
Crop circles from August 10 and August 13, 2013: From Confrontation to Unity!

Interpretations of crop circles according to the Mayan calendar  
2013 - 2015
 

                        
Red Moon Glyphs
Crop circle from 24th July 2014

Interpretations of crop circles according to the Mayan calendar, 2013 - 2015
2015
Crop circle from April 19, 2015 at Macmillian Way, Gloucestershire, UK