ummm yeah, first... dont rape the sharpen filter quite as much...
second... those circular monitor things with the red and green marks on them look very...cartoony. They are completely black and the colors are fully seturated which sets them apart from the rest of the texture.... Use a gray for the bg, add some neat lighting so it looks like glass, tone down the colors a little and maybe add some glow around the red and green so it looks like, well.. like its glowing (I suppose it is?)
the design is cool as it is kinda different from all the other stuff here so far.