This technique is literally called the dotting technique, and was
popular amongst the neo-impressionists. In painting, this technique can
also be called pointillism.
13.9
Explanation: add the amount he doesn’t in gift A (10.7) and the amount he spent on part B (5.4) and you get 16.1. The. Subtract 16.1 from 30 and you get 13.9
The more unbalance the more interesting people find it. If it's all symmetrical the eye won't be drawn anywhere in particular .
The name of painting is Las Meninas
Artist- Dlego velàzquez