Attached Link: Original Render

This is a section of a completed render.

The scene is one that I have successfully rendered several times, and the new picture comes from relocating the camera elsewhere in the scene, see link above for previous render.

Instead of getting a decent render, the hull of the ship is speckled with circles and the plants look terrible. Strangely, the Poser figures look fine. I've tried adjusting lighting quality to no effect.

Atmosphere Quality Boost is -1, Advanced Lighting Quality 60%, both values are the same as previous successful renders.

Has anyone seen this before, did you find a solution?

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