Nice lylejk, good internal lighing of the half-made Dyson sphere.
I actually have an astronomer colleague who (mostly for fun) runs a side-research project looking at other galaxies to see if there is an excess of infrared light (the hypothesized effect of multiple stars being surrounded by Dyson spheres). If so this could be an indication of a growing
Kardashev type III civilization. So far I believe the result is just an upper limit - if such a civilization exists, less than 0.7% of the galaxies could even possibly have one. So not a really decisive result but fun that anyone checks it out.
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Griatch