Regarding Ok Phra which is used to call the pim

1.OK Phai Saphok Phai (chest wide hip wide):This is the pim with big chest, narrow waist and
 wide out again at hip. This is the pim which contains chest, waist, hip. Luang Wicharnchiaranai used
 the existing buddha statue in the temple of Wat Rakang as his model.  This Sukhothai pattern.

2.OK V (V chest): This the pim with big wide chest, narrow waist and float, no hip. Someone
 calls “Ok V El Loi” The chest of buddha image is in english letter V shape. This is early Sukhothai art
 pattern.

3. OK Krabok (Cylinder Chest): This is the pim with chest, body and waist in about the same size.
 Like old people with no curve in shape unlike the first 2 pim. The top and bottom of the chest are 
equal like bamboo that used for collecting syrup from palm tree. This is U-Thong art pattern which is 
 not so beautiful.

4. OK Reaw Fab OK rong (Deflated tapering chest and channel chest): This is the pim with small
 chest, tapering body, deflate belly like a channel, long topmost neck, hair goes beyond the arch, 
small leg, face similar to grasshopper face. This is Phra Sai nong Khai art pattern.

5. OK Jeeworn Sangkhati : This is the pim that one Jeeworn line is visible from right armpit to left 
shoulder and 1-2 line(s) of Sangkhati from left chest down to belly. This pim is Chiangsaen art pattern.