I actually had to try a number of times in placing the rockets before I ended up with that - I had a half-dozen other versions that looked much worse. I'll try moving them forward though, as Hertzila said. I'll also take Crystan's idea of shrinking them just a little bit.
They can't go directly on those downward-angled wings though - They look awful like that, and the wings are angled in so many funky ways they don't go on right anyways.
BTW, I was finally able to import a city from a link H-Hour mentioned, a huge model with no apparent license restrictions (I'll double-check at some point though, just to be sure).
The only big issue with the city model is that the base is angled on an uneven slope, making parts of some ends fly up into the air. I really had to fark with scale and size settings quite a bit to avoid having it half-buried in the terrain, or too high up, with an astonishing result: Ye Olde Fantasy-Wonderland Magical Floating City-in-the-Sky. (Ahoy!)
(Sorry for not having a screenshot, I unfortunately didn't save the render of the "flying" city in the clouds.)
Anyways, to get the result in the pic attached here I had to edit the city mesh and
extrude downward the lowest edges, making the streets look like they are held up by supports. Not perfect, but nearly all I could do unless I started my own city model.
Back to the rockets on the Stiletto, those will be easier to fix (by comparison).
BTW, changing the green plane under the city to water, to look like a lake, would be fairly easy, if that would look better.