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I know it sucks, but I thought I'd post it to get your thoughts on how I can improve. Thanks.

http://img386.imageshack.us/img386/1696/captian6bs.jpg

A lot better than your current. I like the brushing and multicoloring.

The colors seem dull. Id brighten them up a bit.

very washed/faded colours just change the contrast and add a bit more colour into it other than that nice brushing good work with the render but it's hrd to see your text at first maybe sort that out a little and it'll look great