^ Hmmn... where'd that ortho come from? It doesn't look particularly accurate compared to this screen capture
from Memory Alpha. There it looks like the front of the "wings" just have some kind of panels, just coloured dark. And the image I linked to doesn't have those yellow glowy bits at all.
I don't think I can directly link to images on Ex Astris Scientia, but on this page
, if you look at the image labelled "Romulan science ship - details", the bottom-left image shows that there's no space between the top and bottom of the wing structure on the science ship version either.