Quote - Try this one. I made it. It has a lot of sky light and very little light from the ground. It will produce a lot more definition.

You should put this in your IBL. Turn off all your other lights. Don't bother with AO, shadows, or raytracing at this point. You need to do fast renders and experiment with the lighting to understand how each one you have influences the whole.

Render with just that IBL. Start at 100%. Then decrease it until your image seems slightly too dark. That is the contribution from the environment.

Turn on AO for this light. Render again, with shadows and ray-tracing enabled. (AO is considered a shadow, and it is a ray-traced effect). You want to adjust AO so you get nice shadows in crevices and nooks and crannies, and you don't see any black splotches. If you see black splotches, increase the ray bias.

Now add a single INF light, probably between 60 and 80 % intensity. Make it come down from above.

Experiment with the setting.

Then, turn on ray-trace shadows for the INF light.

Then see what you get.

Experiment with other IBL probes. Watch out for the intensity.

Oh and on your IBL, I suggest that Contrast = 1. For any IBL that I make, it should be 1. The default is 3 I think. Not a good idea if the IBL was made properly.

he he it looks like we used the same pic for the sky IBL. i made a similar one. 
but i always forget to make the contrast 1.
thanks.