Is it possible that the CGI model had a normal map that was misaligned?  I notice several locations where there's a shadow of a contour of the ship but it's aft a few meters.
EDIT:  This is probably the last thing I can contribute on the matter.  Without looking at the CGI version, here's what I've deduced.
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As you can see in the above pic, I've pointed out black spots in the pic that I believe are shadows.  Thus, they'd have to be cast by parts extruded above the rest of the wing.  However:
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In this picture, lighting suggests that the overall area the greebles are contained in is inset in the hull.  In the top right, you can see a closeup of one end of the sensor strip area.  The shadow suggests it is indeed inset along the entire length of the strip.  The lower right part shows my conclusion:  the entire sensor strip is somewhat set into the hull, with parts that are tall enough to peek out above the indentation.