The Logo is represents teaching traditional Muay Thai.  The Circle represents the Loh (the round shield), and the Daab is the sword in Krabbi Krabbong. Written in the inner parts of the shield are the names of the nine limbs of Muay Thai.   The Two fighters (Nak Muay), are performing Hak Nguary Lyara (breaking the elephants tusks) from the Mai Mai.  So this logo represents Silipa (Ancient ways of the Martial Art) are being taught.