Quote - Hello everybody,
I use Poser for a while now and I am no beginner at all, but I think that I can learn a lot and benefit from others. So I would like to improve myself but the truth is I do no know how...I never get any helpful critique on my pictures which would point out to things I could do better or things that would  be nice to learn.
I am open to all suggestions to improve. Please feel free to browse through my gallery and point out things I could do better (ignore the first four images, they are just showcase stuff and focus on my "artistic" renders) 

The best way to improve your skills would probably to determine what you are trying to accomplish that way people will have a better idea of what to focus on.  Art is kind of funny because there's really no defined way to be "better" unless you are trying to accomplish a particular style. For example, When I sketch I have the habit of not completing it. All of my sketches are missing something.  It's either an ear, a foot, a hand.  It looks unfinished but in my eyes it's complete and doesn't need anything else.   Your art is the same way.  What you create may be the final work and doesn't require any improvement.

My digital art is different.  Sometimes I want to make my renders look like paintings and other times I want my art to look realistic, then there are times I want my art to look as if it was made by a computer.   If you tell people more about what you want to accomplish or trying to accomplish then you'll get better suggestions.

here's an example of what I'm talking about. This picture I state what I'm trying to accomplish.
http://www.renderosity.com/mod/gallery/index.php?image_id=1929483&user_id=432884&np&np

On this image someone emailed me and said the grass was blowing the wrong way. That was the look that I was going for so even though they didn't like and said that I could improve the picture by making the grass blow the right way But for me it would have messed up my picture since my goal was to have it blow in the opposite direction.
http://www.renderosity.com/mod/gallery/index.php?image_id=1678690&user_id=432884&np&np