Self portrait competition

So I'm entering a self portrait competition...I've never done a self portrait and this is the first serious painting I've done in about 8 years. So a big challenge. It's about 1 metre x 1 metre in size and in oils.
It needs to be finished and submitted by 1 September. Tonight I've spent a lot of time just staring at it...I think it's nearly finished, it needs all it's white highlights doing and a few other bits, nearly there...I think!! Helpful criticism welcome...