Beauty lighting setups does not have to be difficult. You can easily get professional looking beauty shots using the clam shell lighting setup.
It’s called clam shell simply because you rig two softboxes as a giant gaping clam shell. It’s hard to see in the lighting diagram because of the levitated view. It would have been better illustrated if the lighting diagram was viewed from the side. Anyway, I think you get the idea.
A common setup is to build you’re clam shell with a larger upper softbox and then a lower smaller stripbox. The upper softbox is about one stop higher than the stripbox. Using two softboxes gives you good control of the light.
Simplified clam shell lighting setup
This specific clamshell lighting is simplified a bit. I used one big softbox from above and then a big horizontal silver reflector underneath. This gives you a little less control of the light, compared to using two softboxes, but the setup is about what you want anyway. The softbox will automatically give more light than the silver reflector. You can vary the distance between the soft box and the rector to control the light a bit. You can also try with a white reflector to find a lighting setup that you like.