This is very beautiful Akila!
This is quite nice and pleasing.
Without colour, the symmetry is mm4 (see my pictures and Lataji's note).
But if one takes into account, the symmetry is only 2 (just a rotation
of 180 degrees, ie opposite sides looking similar). So colour can
sometimes decrease the over-all symmetry of the rangOli.
Regards! - mOhana
Very clearkolam and nice colouring.
beautiful!