Hey there, just my two cents here, but the main two things I would focus on are colour contrast, and texture. Obviously there's a huge contrast between the black/white/grey of the woman's body/face, and the absolute explosion of colour that is jutting out of her face. There's more techniques within this. Symbolism for instance; you could say how the contrast of colour symbolises a base, "canvas" identity through having black/white as monotonous, background colours, where the explosion of colour symbolises how identity can be explosive and abstract, ARISING from this blank canvas. Since the colours are minaly red, yellow and blue (primary colours), it denotes some sort of primordial sense of identity that is fixed and unchanging. The very fact that the colours are exploding from the woman's face rather than anything else is a metaphor for how identity is something which we often "see" - we see someone's face, when we first associate an idea of their identity (provided that we meet them before speaking to them). Even so, the idea that you can have the base and the abstract in order to make a whole idea of identity is symbolic.
With texture, I mean the physical texture of the painting itself. The colour, if you look closely, if very thick with bumps and is three - dimensional (symbolic of how identity is also multi - dimensional. It's not just what we see, it's what we can feel physically and emotionally). Texture also adds a visual element (and physical element) of interaction - we can perceive identity as something abstract, but in the painting, it has been made tangible through the texturing of the coloured paint. The vibrancy of the colour AND its texture when juxtaposed with the two dimensional monotony of the black and white woman again is a metaphor for how identity is fluid and multi - faceted.
Just some ideas - the possibilities are endless! Good luck
