Thanks peeps,
I think the bevel will remain on the windows as it adds a bit of depth and does not look out of place or wrong in my opinion, the size of the windows on the secondary their placement and there hue still needs to be corrected though, the warp necelles have not been textures as I am planning on rebuilding them, thanks for all the ref's and all opinions and suggestions are welcomed.
I did not notice the lower section of the sphere needed to be straight, so that will be corrected, at the minute work is kind of manic, and i have no free time other than to eat or sleep, but will get back on track over the coming crimbo holidays 8)