Painting emotion - Anger

A challenge I set myself to literally paint an emotion. I'm currently working on putting more feeling into my art and I thought I'd throw myself in the deep end.

Considering what I dredged up to power this piece I'm not sure if it ended up being more disgust than anger, at least while I was painting, but the outcome I think is rather angry!

Acrylic on canvas.

Edit: Poopy, it has a camera artifact on it. The vertical stripes that are apparent particularly on the bottom right are lighting boo-boos from the texture of the canvas
Oh, but you don't see them if you zoom in