Not as Western as I thought.

I actually did a tryout page for the first time in 5 years for a western comic. Not really a reader of Western comics so I was crazy to try. I'm not really sure what I was going for. what readers of western stuff are looking for. I just did it as I imagined it and ...big suprise, I struck out. I got a nice vague(probably form) response, so I leave it to fans of the western thing to explain it to me. What did I do wrong, what did I do right, etc. Or could it have been simply not the look they were going for?
If I learn nothing from this it was a complete waste of time .