Also the post-process filter in the Render Setting dialog lower right area... default is mushy "box" IRC. Try "sinc" which is more crisp.

The pupil looks pale on my LCD... do you need to fix the setting on the transparent eye material?

BTW Still do textures need to be 512x512, 1024x1024 etc. not to be re-sampled for the render?

Also... is their a way to force a Max Texture size in Poser 8 to get that setting like was possible in Poer 5? I loved being able to set Max Texture size in Poser 5.