Okay, TE and The Judge, stand back... I am due one slap-free mention, having been given one in advance, by The Judge, a week or so ago.
Blackrook, here's some advice given to me by Patrick Rothfuss, which should help you: "What really defines a character in a reader's mind is the actions they take and the dialogue they engage in."
It is true, (and you've asked about this on another thread) that description/exposition/infodumping in large chunks tends to be ignored by a lot of readers, so a really short detail can stick in the mind incredibly well. Take for instance a description of a little girl in a blue dress, with blonde hair and pigtails and clear blue eyes - we'll skim a good bit of that, it's kinda expected. But if you have a little girl in a blue dress with skinned knees, it tells us more about her, as well as being slightly incongruous with 'blue dress' - it "forces a little dynamic interaction in the reader's mind for the character's creation".
So although you say have little patience in describing the setting, the character's facial features etc, that could be a strength - the minimum of description to move the action along. Rather than doing a police sketch - 'he was a male cucasion, 6ft 3inches tall, brown hair, dark eyes, moustache, tan jacket etc etc etc' - you just say 'he was tall with Adolf Hitler's moustache', guess which will stick in our minds better?
And if dialogue is your strength, then you'd be foolish not to wield it to best effect in your storytelling. As a counterpoint to my major opus, I'm writing another story when I have writer's block. The first chapter is almost entirely dialogue, with an absolute minimum of descriptive words. I think it's great, but I know some people will not like it. Does it work? Yes, it does. Is it perfect? Of course not... but it will be one day!
Hope this helps, especially since I've used my 'get out of slap free' card...