The quality of your work is reflected by the scores in your gallery, this in turn is probably due to the fact that you are painting fast and not taking time to learn the techniques that will improve the finisehed result. It is worth taking the time to try new ideas, like thinning your paint, gradual highlights and that sort of thing.
Post WIPs and ask questions and read the articles. The time you take is reflected in the end result, More time =more care=better looking mini when you are done.