How to put dots in rangoli

The images below show the difference in the size of the dots depending upon the quantity of kola podi we use.

If we take minimum quantity of kola maavu, dots look like this

If we take more rangoli powder dots are thick and some times look like small lines.  When we join them with lines , they are not covered entirely by the lines

The gap between 2 dots should be uniform to the extent possible

 When we place a dot grid , for example  for 7 to 4 dot grid, place the 7 dots first and then the remaining dots above and below for better symmetry. Also if your question is how to keep pulli or how to keep chukkala , please read this post.