I love chemistry, especially organic chemistry. Drew this methane molecule because methane is the first compound we study in this discipline (my primary education is a pharmacist). And, to be honest, because I love drawing these shapes. Atomic orbitals represent all possible places of the electrons in space. That is what the dots stand for. And I like adding dots everywhere, too. This design is also related to environmental issues, because methane is one of the gases which contribute to the Greenhouse Effect.