Veeeeeeeeeery interesting. I am waiting for my kit to ship and this is a good reconnaissance. I can see the window frames will be an issue to deal with.
I'm not sure what stage of the story mine will portray but if I were to light the ring, I'll be opting for warm white leds as the film clearly shows the lights to have the typical incandescent yellowish glow.
You got a good result from what's apparently a good kit. I feel at ease now, having seen your pictures, that the (lot of) money (for me anyway) is justified. It's always good to have an independent source of information to verify the true quality of a product and your pictures have contributed to that very much.
Thanks for posting.
Kind regards.