Thanks for all the responses so far - they've been very instructive and pointed out a mistake that has detracted from what I was trying to do here - I think I'll clarify what I mean a bit later when I have something better executed.
The thoughts that went into my head:
1. I don't particularly care about my own appearance - and I don't think my own face/body will give you any clearer indication of who I am.
2. I make very few choices about what I wear. The shoes are one specific, distinctive choice. Mostly I wear happens to be a combination of whatever is on top of the drawer.
3. Definitely was aiming for a little bit of jarring action there - if you include a face, you end up with most your brain focusing on that. I don't want you to ignore the elephant in the room. Maybe too blunt in this case though.
There is more work for me to do on this. It may become part of a series. It may just be a single photo.
Just some point to consider in your next step, Sam
1. Try concetrating on what you do care about instead of what you don't. In a sense, not caring is a 'style'. Trust me, I've been working on it all my life and have it perfected. So let your image show us what your 'not caring' style looks like and how it manifests itself on you in particular. We don't know you so we still need a bit more information to recognise you in a crowd.
2. Sounds like you make very strong choices about what you wear and you have good reasons for doing it. Its also like most blokes I know including myself. How I would love to see a portrait of you behind a stach of crumpled clothes while you choose the very top items. Then we would know what you are like.
3. Don't be too concerned about the face being our centre of attention. We can't help ourselves. Its probably innate. But it doesn't have to be the whole face or even a clear picture. Imagine a portrait of Roy Orbison with just the glasses, or John Lennon. Think of the familiar people around you and find a feature that distinguishes them from everyone else. Ask them what it is about you that works for them.
Have a look at some protraits that work. My favourite is Jane Bown's stuff. Its OK to talk about the elephant in the room as long as its not sitting on you.
Here are some simple examples that might clarify my comments.
The first one is definitely not, by any stretch of the imagination, a portrait.
_DSC2767 by
tom.dinning, on Flickr
This one definitely is..
20110728_0826 by
tom.dinning, on Flickr
Its up to you to know which direction you go. Ultimately, its up to us to decide if we get it.