I find Poser lighting trivial. No lights here. So it's not lighting that needs learning.

It's all in the materials.

I mean to say - you can trouble yourself to learn how to use the lights, but really if you can't make a no-lights render like this, then you have a problem with materials first and only.

Once you get good materials, then you can see about getting clever with lights.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)