I like the attempt to bring abstract and sci-fi genres of digital art together. The 2d I think looks out of place, although the colors of it go well with the rest of the piece. Maybe to give the 2d a perspective-look so that it flows well with the render would work? The lightning and brushing I think is very well done.
I like it, there's a lot of energy apparent in this image, but it could do with tidying up a little bit. I'm not too sure about the 2d placement either, it seems to cramp the area of detail. I think it should wrap around that area more, instead of just lying across the bottom of the image.