There are no sprites representing outside view of the hull of UFO, at least noone did that, YET.
You can make presets from the isometric sprites, and from the images of other ufos, and share with people.
Sidethought: I think it might be possible to have these looks rendered automatically, but in this case it should be scalable graphics, i.e. opengl 32bit. And even in this case it doesn't guarantee it will look at least not THAT worse than pre-drawn.