New provincial license plates

On December 27th four announcements regarding the colorful provincial license plates were published in the Royal Gazette. Samut Songkhram is about the last province which now has such a graphic defined (only Yala and Mae Hong Son have none yet), the three other announcements only added a new design for the respective province.

• Phetchabun: a completely new design added, showing the highlights of Khao Kho district - the hill with Wat Phra That Pha Son Kaeo (วัดพระธาตุผาซ่อนแก้ว) with a misty background, and inserted at the right the Khao Kho Memorial (อณุสรณ์สถานผู้เสียสละเขาค้อ) commemorating the victims of the communist insurgency 1965-1982. The 2013 design still looked very different. [Gazette]
  
• Surin: Comparing with the plate announced in 2012, only the elephants are present in both designs. In the upper left corner are the flowers of the provincial symbol flower Fagraea fragrans. The upper right shows the Tha Sawang silk. However, I don't know which pier and body of water is depicted. [Gazette]
  
• Roi Et: The new plate has the same elements as the plate announced in 2015, the only difference is the purple background instead of a green background in 2015. [Gazette]
  
• Samut Songkhram: The license plate shows the same elements as the provincial seal - a drum (Klong) on the Mae Klong river with coconut trees on both sides. [Gazette]
  

My album of provincial license plates is still incomplete and badly sorted... I have also prepared a spreadsheet listing the years by which plates were announced for each province.