When creating your "abstract self-portrait" project, consider the following:
a) a breakdown of your face/body into abstracted shapes (consider the different Cubist styles below); you are fragmenting your physical self into a collection of interlocking and/or contrasting shapes.
b) a symbolic use of color that does not reflect color as it is; establish a unique palette based upon color contrasts that works with and enlivens the abstracted shapes you have created.
c) painting style-- consider your brushing/handling of paint; consider texture and gradation, hints of color within color; coloring the edges of shapes; outlines or no outlines... (again, consider the different Cubist approaches below).
Albert Gleizes: Woman with Black Glove (1920)
Gino Severini: The Accordian Player (1919)
Jacques Villon: Girl at the Piano (1912)
Jean Metzinger: Woman with a Horse (1911-1912)