Sure, here:

As to what I used: AfroditeOhki's Level Up Superfly props: dome and background first. Then I removed the background and only used the dome. Then I added the Construct as suggested here and used holdout node on it.

In all cases I checked 'render over transparent background'. None of those brought the result I wanted ie. just the figure over transparent background.

I render very specific moods for both portrait and multiple-prop/figure scenes--how lighting looks is important to me. If that is not what I can do and I have to fiddle for hours in Photoshop to achieve the same, I better know it now.