Entered for diwali rangoli contest 2008.
I call this type of Rangoli a picture rangoli or shaded rangoli. It has a Jain theme, with a statue of 1st Tirthankara shree Rushabhdev and his symbol is the bull. It does look almost like a picture in the photograph.
The powders used are finely ground white marble (in Gujarati it is called CHIROLI) and finely sifted river sand and rubber colours used in industries. To colour the white marble I have used Cloth dyes (like Dylon) and food colours. The rubber colours are available in Kenya at indian shops. Marble & Sand colours are used in the figurative work and shading. The rubber colours are used in making the finer "abhla" the mirror work on the Toranas (or chadar) of the Bulls amd the Blue Green backround. I have very fine netting to spread large amounts of colour evenly and the shading. Used credit cards were used to do the shaping of the required figure work. Small funnels (available from shops that sell laboratary equipment) were used to put dots and circles and sometimes outlining colours.
In the end I have put gltter to compliment the shine in the marble powder
I hope this summary helps in understanding
It took me almost 20 evenings to do this rangoli.