Great job - the lighting is good now. You can adjust the IBL level around this range as you see fit, but the general idea of the lighting is good.

Image issues are like playing whack-a-mole. There's always a new mole sticking his head up after you whack one.

Your figure looks great - perfect. Your light and shadows look great. If it were my image, I'd start tackling the materials for each prop. The realism you've introduced makes the textures look out of place. Some of those textures are so low resolution that they look cartoonish, or look like somebody went around hand-painting new things to try to make them look old. And too many things look the same. The rack behind her, the stool, the anvil stand, the wooden pillars, the big bolts on the pillars, the hammer handle - all are covered in the same low-res antiquing. I'd go around replacing those textures with better ones, or doing full procedural shaders.

While working on these materials, I'd hide the figure to make rendering faster.

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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)