Hey

This is looking... not bad SO FAR. The colour scheme is good, although the green at the front is dulling it down too much. There needs to be more exciting elements in here. All this is just now is a few brushes and shapes, there's no depth,

Take out the circle, it doesn't add anything to the image, images like this need a bit of depth to stand out.

I would

1 Take out the circle
2 Change the shade of green
3 shade the shapes to give a 3D effect
4 if possible, add some 3 D elements ( and i dont mean c4d's from planet renders.)
5 use blur and sharpen on different elements to create the illusion of depth
6 help the viewer concentrate more on the "Wave" right now all im looking at is the ugly circle

Although its a major wip, it could be good if you put tyhe work in

Keep it up, you need any help just pm me or add me on msn, its in my profile i think.

I liked :
The idea
The colours
The texture you used.