Hola Hola! I've been experimenting with different brushes while trying to discover a variety of digital painting techniques. Dragonfly was done primarily with one soft brush, and separate brush for the hair details. While Butterfly was done with a whole range of textured brushes and stuff. Personally I'm preferring the softer look in Dragonfly. Less in more I guess.

Dragonfly

Soft shading style

Butterfly

Hard edges & texures