Whoa, some nice stuff in here! You're getting better and better at these enviroments, wouldn't mind playing a game with these

Some stuff I think you might want to work on are getting rid of the photoshoppy look of it, it really says digital to me. I know these are quickies so don't take this too seriously.
I think for a large part it's edges and texture. Most of your edges are equally sharp so there isn't a clear hierarchy and texture or detail or paterns etc tend to pull in the eye.
Ofcourse you could make it even more digital-speedpainty looking, that's another choice, but I think right know it's a bit indecisive in that regard.
You've got pretty sweet lighting and atmosphere going on, that's definatly your strong point, and I would push it even further if you can.
There's a composition video download on CA for 30 bucks. It's a pretty sweet deal, as Manley talks about focal points and moving the eye into and trough the composition. Doing spatial pulls with color, edges, detail, texture... all really interesting stuff. If you could get a really good understanding of what he talks about that would go a long way I think. I certainly learned allot from it.
Radiosity and subtle shifts in color temperature would help a bit too. As the forms recede into space it's a good idea to give the color of the outer planes a bit of the temperature of the background.It helps tie things together, and just adding in bounce light into the other forms so that everything is interacting with eachother.
A really good exercise to do is to get some goauche or acrylics and paint things from life with a very limited pallete of say, 3 colors. Just try to really get the temperatures and values right by using only 3 colors. I'dd use a white and two complementary colors that can mix into a good substitute for black. You can really get allot of color out of just a few pigments if you work enough with them, and it helps you to see the subtleties. It's also good to know how real media works so you can get some of that feel into your digital work.
Your ornaments aren't quite doing it for me yet, in most libraries you can find a few books on pattern design in the hobby or arts and crafts section. They usually show how the designs are built from grids etc... I know some concept artists have allot of patterns in their sketch books.
Was just looking over an old Vyle post on CA, perhaps that would give you some ideas
http://www.conceptart.org/forums/showthread.php?t=57060Keep updating, love where all of this is going
