You sound a little bitter there, funnymouth. Perhaps you're taking the voting system a little bit too seriously. Ever heard about the validity of internet polls? It's the same thing here, you can't entirely trust the result because there's factors involved that don't have anything to do with the quality of the sculpt or the paintjob. Sure it is a rough estimate, but people tend to either vote high or low and rarely mediate or put actual thought in an appropiate rating. So it sucks or it rocks. Both are equally bad, I dislike the harsh downvoting of okay minis just as much as the blind upvoting and stream of 10s that some of the better minis get, just because they can't do better themselves or see anything wrong with it.
And that's the whole crux of it, people vote relative to their own (percieved, mind you) skill level and how critical they are (by mood or lifestyle).
tldr; Lighten up, don't take ratings too seriously. Keep it real.
Now back to the guy who started the thread, you're doing fine for just 6 months, really. I did much worse. It takes time and effort. The more time and effort you put in your minis the more you'll get out of it. And that's important, it has to be fun for you if you're doing this to please other people, you might want to reconsider things because I can assure you that won't last very long and doesn't make for a happy life.
Just keep at it, read some articles on all the basic techniques (you can never practice the basics enough, since they're most important!), like layering, blending, colour choice. There's plenty of articles around here on CMON and helpful people. Learn to understand how it works, art principles and you'll see mistakes yourself (though there's a risk to become too self critical, but don't let that go to your head)
And you'll find yourself improving over time.
And the sculpt isn't entirely bad btw, it has some potential. But it's not the easiest to make it look really nice I must admit.